The truth is that overwhelming majority of businesses fail. Entrepreneurs are not usually excited to brag about their failures publicly so we mostly see the hopeful beginning of all these ventures and not the sad, quiet ending. Though you do get occasional post-mortem stories here on HN (which I think are nice for balance) it is easy to forget about those and get a false impression that you are failing and everybody else is constantly succeeding. If you measure your own experiences against it you can wind up feeling stressed and depressed.

If you do think that the entrepreneurial spirit is something that is burning inside you, and not just peer pressure (of sorts) then I would say, just keep dreaming, keep working and don't dwell on failed projects. Find a personal itch that you would like to scratch. Good luck to you!