I've been kind of dealing with the same issues. I'm passionate about so many things, it's hard to find the path that is above all right for me. I love art and designing (that is what I've decided to go on doing for the rest of my life), but I also love how the world works. Politics, government...it all interests me. I love virology and science! I wanted to be a microbiologist studying under virology. But I figured that I didn't want to kill myself going through medical school. I love working with kids, and I've even thought about becoming a teacher, but I just don't see that happening with me. I thought about becoming a highschool teacher, but I don't think I'd be happiest there for the longest period of time. I'm really good at writing, too. I've thought about becoming a writer or a columnist, but I always kind of shrug that one off.

Then I kind of just narrowed everything down to why I wanted to be those things. I've decided that I want to affect the world in some shape or form. I want my life to be meaningful to another person besides myself. If I've accomplished that, at least, I know I'll have lived out a very good life.
One more tear falling down your face
doesn't mean that much to the world
One more loss in a losing life
doesn't hurt so bad anymore