Hey Mike, you're not alone bro...
I get the same way at times.
I usually go out to the garage and crank up some tunes and piddle around with my car or whatever other projects I might have going at the time.
I'm not much into going to the bars anyone since I quit drinking alcohol in any way, shape, or form... I'm totally sober these days, which also makes for a very boring time.
Watching a Cheech and Chong movie would make me even more depressed, watching them get high and what not, lol. Been there, done that... not a very productive hobby I've realized.
I'm not not much fun anymore, I guess
Most of my buddies that I used to run around with are still doing the same thing they did in 'high' school and I'd rather not associate with them for that one simple reason. Soooo, here I sit staring at a computer screen, getting ready to go out to the garage and work on the 'stang... on a Sat. night, of all nights.
Find something to do, get out of the house and get away from your computer... go for a cruise and jam out to some tunes.
Snap out of it bro
...easier said than done, I know.
L8R
-RLS