Dom, if it's anxiety, its within yourself to cope with what the underlying issues are. Dude, you have to start thinking in different ways and there are ways to do that. I had to start, and still dealing with ways to think of the bigger picture.
Honestly, try meditating and reading books of this nature (thanks Ali.) You can grasp it without having to turn to meds, I promise. It might seem ultra, ultra hard but having the mental power to handle business on your own is a wonderful thing.
Much love dude and if you need to talk, hit up 1-900-manlove.
No really, call me up and I'd love to talk. No joke homey.