Charles Weill spent seven years as a machine learning engineer at Google before leaving to start CreatorML, a company that uses machine learning to analyze YouTube analytics and help creators decide what content to make. He went through Y Combinator’s Winter 2023 batch, raised a seed round of a few million dollars, and is now navigating the intense transition from a comfortable corporate career to the chaos of venture-backed startup life. The conversation covers his journey from Google employee to digital nomad indie hacker to YC founder, exploring the psychological, financial, and lifestyle tradeoffs at each stage.
Leaving Google and the financial calculus
Charles studied computer science at Cornell, tried a failed startup at 24, then spent seven years at Google mostly doing machine learning, which he was drawn to because it was genuinely hard and Google was the best place to learn it.
He left at 32 because he felt too comfortable and didn’t want to give his “best years to corporate overlords,” framing the departure as a sabbatical.
His decision to leave was heavily influenced by Nassim Taleb’s concept of anti-fragility: he saved enough money to live modestly for about ten years without needing income, giving himself a financial cushion before taking the leap.
He was deliberately risk-averse about finances, selling Google stock early and often, which cost him upside but gave him peace of mind.
Even with that cushion, he experienced significant uncertainty, especially when the market dropped after he left and eroded part of his savings.
He spent months researching the decision, watching YouTube videos and reading about others’ experiences to make sure he wasn’t making an emotional mistake.
He recognized a “revolving door” pattern in tech where people leave, take a year, and can often return, which made the risk feel more manageable.
The first year: digital nomad and lifestyle business
From October 2021 to October 2022, Charles lived as a digital nomad, traveling to places like LA, Portugal, Dubai, and Bali while building CreatorML as a solo indie hacker.
He was intentional about not comparing himself to others and focused on personal growth and learning as his primary metrics of success.
He explored different cultures and lifestyles, trying to understand what made people happy outside the Google bubble. He observed that Europeans tend to value quality of life over work ambition, while the US has a unique culture of encouraging entrepreneurship with readily available capital and market access.
He became “addicted to travel” and found that spending at least a week a month in a new environment helped him understand himself better by separating his identity from his environment.
During this period, CreatorML was generating just enough revenue to suggest there might be something there, but he wasn’t certain. The option of going back to Google remained on the table the entire year.
The Y Combinator inflection point
In September 2022, Charles applied to YC and got accepted, which became the decisive moment that shut the door on returning to Google.
He had worked on five or six different projects before CreatorML, none of which felt right, and even after YC acceptance, he acknowledges the company could still pivot to something entirely different.
YC was a major culture shock. Coming from a relaxed digital nomad lifestyle, he was suddenly immersed in the Bay Area’s “think big, build a billion dollar company” mindset where investors don’t want to talk to you unless you’re targeting massive outcomes.
He noticed that Google’s New York office operated on a slower cycle than Mountain View, where all major decisions are made and then ripple outward. Being in the Bay Area gives founders a timing edge on information and trends.
About 80% of his YC batch was physically in San Francisco, but roughly half left after the batch ended, with many relocating to New York. Charles himself is now seriously considering moving to San Francisco despite being a self-described die-hard New Yorker.
The psychological toll of venture-backed startup life
Charles describes a dramatic shift from his pre-YC lifestyle to his post-YC reality. Pre-YC Charles was a “chill digital nomad.” Post-YC Charles wakes up at 6:30 a.m. with cold sweats, racing thoughts, and anxiety about whether the market is big enough and whether everything will work out.
He experienced crippling self-doubt about three months into YC, despite entering with revenue and customers, because the creator economy is seen as “not sexy” by investors. He heard estimates that only about 2,000 creators in the world would pay for his product, which made him question the market size.
He draws a distinction between productive and unproductive uncertainty. At Google, managers filter and narrow uncertainty for you. As a founder, you face all of it at once, and the only way to deal with it is to take action and run experiments rather than spiraling in analysis.
He describes a downward spiral where anxiety leads to unproductivity, which creates bigger problems, which creates more anxiety. He’s currently in the middle of this cycle.
He emphasizes that this anxiety is normal and universal among founders. He called a YC visiting partner specifically to hear confirmation that what he was experiencing was normal, and it was deeply reassuring.
Building a support system
Charles advocates strongly for professional support: therapists, executive coaches, and personal trainers. He references Justin Kan’s advice that every founder needs all three.
His company funds both therapy and executive coaching as professional services. His executive coach helps him remember that accomplished people he respects went through the same struggles.
He made a simple goal of going to the gym at least three to five times a week, using the elliptical for an hour as a mindless, achievable routine. He gained weight during stressful periods and had to consciously work back to his goal weight.
He treats sleep as a job responsibility, blocking time for it and recognizing that even small variations in bedtime significantly affect next-day performance. He compares founders to high-performance athletes who need recovery to sustain a 10-year effort.
He emphasizes that at the early stage, the founder is the company. There’s no redundancy. If you burn out, no one else will save the company.
Fundraising stress and momentum
Fundraising was the hardest period Charles has experienced as a founder. It consumed two months during which he wasn’t building product, posting on Twitter, or serving customers well, which killed his momentum.
He talked to about 100 investors, an exhausting process. Some founders in his batch raised in a week; others talked to 100 and got zero yeses. He got some yeses but received little useful feedback on rejections.
He describes a feedback loop of stress at YC batch dinners where founders fed off each other’s anxiety, wondering whether the shared stress made things worse.
Startups live and die on momentum. When you’re not growing, it feels awful. Charles is currently working to regain momentum by hiring two contractor engineers, hiring an agency for landing page redesign and SEO, and posting content that resonates (a tweet about Mr. Beast’s thumbnail changes got 500 likes and helped rebuild energy).
He references the “post-YC slump” where companies show hockey-stick growth during the three-month batch and then flatten or decline afterward because the structured milestones disappear and founders decompress.
Lifestyle business vs. venture-backed ambition
Charles draws a key distinction between lifestyle businesses (instant gratification, funding your current life) and venture-backed businesses (delayed gratification, building toward a massive outcome).
He admires successful indie hackers like Peter Levels and Daniel Vasalo who make high six or low seven figures as one-person operations, but notes that many young lifestyle business owners eventually hit a ceiling and get depressed because there’s a limit to what one person can do without a team.
Scaling beyond a seven-figure business requires capital to hire people who are strong where you are weak, which usually means taking investment. Debt is an option but difficult to obtain for startups.
Charles realized his technical skills were decaying (still using Django and jQuery while the industry moved to TypeScript and React) and that hiring people who are current with modern tooling would be more scalable than trying to learn everything himself.
He was already hitting this realization before YC, but YC accelerated and formalized the shift in mindset toward thinking bigger.
Work-life integration over work-life balance
Charles doesn’t believe in “work-life balance” as a concept. Instead, he thinks of work and life as integrated and tries to align his work with things he values, such as in-person collaboration, attending conferences, and being around energetic, social people.
He works four days in the office and one day from home because in-person collaboration gives him energy as an extroverted person.
He acknowledges that startups are all-consuming and have strained his personal relationships. He references the meme that startups make you break up with your partner and confirms it’s real.
He tries to keep weekends sacred, not working Saturday because it ruins his following week’s productivity. He pays himself first by saving the best part of each day for things that keep him sane.
He uses video games as a reset mechanism, playing intensively for 20-40 hours once or twice a year to take his mind off work, similar to how Mr. Beast schedules board game time to avoid burnout.
He finds it unfathomable how people with kids manage everything and acknowledges he doesn’t have time for dating right now because work is too exciting and consuming.
Role models and the path to sustainable success
Charles looks up to several founders who seem to manage both a demanding business and a fulfilling personal life:
John Coogan: Two-time YC founder (Soylent, Lucy), entrepreneur in residence at Founders Fund, has a wife and kid, lives in LA, and seems to be “living his best life.”
Krishnan (his investor) and his wife Arthi: A power couple who run a podcast together, have two kids, invest actively, maintain thought leadership, travel, and sustain high energy and happiness.
Daria: Founder of a virtual clothing company called DressX, a mom, constantly learning, going to the gym, traveling, and maintaining impressive energy levels.
Stephanie Sellers: Runs the vertical dining concepts that launched Mr Beast Burger, in a successful marriage, has a two-year-old, does boxing, and manages a very demanding business.
He notes that most of these people have been building for 10-20 years, suggesting that sustainable work-life integration is a skill that takes a long time to develop.
He distinguishes between positive dissatisfaction (striving to be better than yesterday while being content with your progress) and negative dissatisfaction (anxiety-driven, beating yourself up, never feeling good enough). He believes the striving mindset is important but warns against crossing the line into a place where all the balls drop.
He believes most startup problems are recoverable unless you’re doing something illegal or fraudulent. Customers might churn, you might need to refund people or apologize publicly, but you can usually recover.
