> Meanwhile, everything interesting/challenging I might have liked to work on is already being worked on by someone else, who is probably doing a better job than I would have

I noticed that reading "recommended content" (like from google news) always gets me to thinking like this, but remember 90% of startups fail[1].

[1] https://www.forbes.com/sites/neilpatel/2015/01/16/90-of-star...