I know where you're coming from. I cope with leading towards jobs/shifts that place me around fewer people, but I think it's hard to do that with a real career. You'd likely just screw yourself over in the long term doing what I do. One thing I did a lot of at my first job was hiding in the bathroom to play games on my psp. It helped a lot to have a little place to get away and relax for a bit. Of course one of my coworkers who's a real asshole started giving me a hard time about spending so much time in the bathroom but if you ask me it's no different than people taking smoke breaks for stress releaf.
My recommendation is to try and find a new line of work, or maybe be your own boss and try a less conventional form of making income. Have you considered forex, stock trading, drop shipping, or running an online business from home?
I know switching careers can be scary but if what you're doing now isn't working for you, you should at least consider it.