This world is so much bigger than you think. You will eventually find or even create the work that fits you best, where you can contribute and feel fulfilled. There is room for you.

Life is full of these ups and downs. Everyone experiences them; sometimes these phases go smoother than your own and sometimes they're a lot, lot worse. As a previous poster mentioned, part of growing up is understanding that we will inevitably move through these phases, over and over again, and if we keep pushing through until things swing up again - which they always do, over and over again - then sooner or later we will be okay.

It sounds like you have a lot to offer. Not everyone is so passionate as you about something. It's a special quality. I say keep moving forward and keep developing it. One day you'll look back on this time and feel so grateful you saw it through.