There isn't a single developer who truly did it "all by theirselves”. The faster you understand that, the easier everything gets. You are in this together. Coworkers, family, friends, customers, people you never see doing critical work, (Seriously, you should be sending Xmas gifts to sanitation workers.)
Once you internalize this, then you realize only collectively can you create a world where you can live a life not dominated by constant stress about fundamentals. Like food, clothing, etc.