I feel the same way you do, and I used to want to do something great with my life, but ever since I've been getting really bad mentally I've felt like I'm never going to do anything with my life. Except for those times where I'm delusional I feel I'm the most amazing person in the world and I'm mean to do something important that only I can do, etc.
I used to read a lot so I considered being very knowledgeable one of my talents I suppose, and right now it's mostly art, I'd love to be a graphic novelist some day.

I'm sure you're talented at a lot of things, you just have to find them.
