"Most people who haven't experienced that kind of failure can't appreciate how much it hurts." - tld. Yeah, most people who are not in startups think you just got a bad quarter or launched an underwhelming project. They have no idea. Talking to other founders helps a lot though. You think you are alone, but then turns out your mind wasn't all that f--up at all, comparing to some others. Cheer up, you will eventually put it behind you, maybe.