[lgieron]

I wouldn't discard your IT career just now. You're likely to be hating some particular aspects of your current job (long hours/little vacation? monotonny? stupid management? dull coworkers? feeling of isolation?). If I were you, I'd try to pinpoint them and try to work myself into a position (most likely by changing jobs, maybe going into a different specialisation) where they aren't such an issue. Even if that transition isn't easy to accomplish, it'll give you some goal to strive for, which in itself works wonders for mental well-being.