This as-told-to essay is based on a conversation with Alex Ruber, a 29-year-old cofounder and CEO, based in San Francisco. The following has been edited for length and clarity. About five months after being in Y Combinator, my cofounder, Parth, and I thought we might have to give up. We met through Y Combinator's Co-founder Matching Program, a free resource to help people find potential business partners, in January 2024. We were both working full-time.