I don't know about anybody else, but I'm in the same situation with my IT/Programmer career at this point.

I really do like working with my hands and seeing the fruits of my labor, and using my brain and my hands an equal amount of time. I also feel the need to just get the hell away from a desk, as far as I can. And lots of variety.

So as you can see, I picked a bit of a wrong career.
It's boring.

And I CANNOT HANDLE BORING AT ALL. I completely shut down after about 1 hour. I don't know how some people make it through life doing boring (for them) work. I'd rather shoot myself than spend a year utterly bored at a job.

And I avoid going insane by reading about stuff I like, and reading lots of wikipedia cuz I'm a curious motherfucker
I also walk around alot, and to lunch because I miss the ol Sun. It's hard, very hard to stay sane or to keep myself from falling asleep on my desk.