I personally think being young is overrated. But that's just me. Find and do the things that make you shine. I think you might already have found it, you just need a better environment. I can't give you advice where to find it, but I can tell you that working in a startup where everyone around you is as involved as you are yourself is a great feeling. That is probably what you should be going after.

Of those who go on about the glories of youth I sometimes wonder how many of them will spend 15 years eating catfood at the end. It almost always goes with a spendthrift mentality.

Yeah. I think many people go to therapy nowadays because they feel guilty for not enjoying their life as much as they think they should. Before people used to instead feel bad about being sinful.

I think what you need to do is fully accept your situation and do what you can to improve it. Look for a new job or have you considered doing a PhD? Learn new things, hang out with interesting people. Does your city have a hackspace? If so use the people there to amplify your creative drive. Working alone is less productive I find.