I'd suggest
Cheering up usually stops me feeling depressed.

Or alternatively, have a wank. But, stop right at the last second and let it go away again. That way, you don't get the post self-abuse shame and self-loathing afterwards when you're sitting there balancing a small puddle of spunk on the top of your clenched fist.
( sandettie light vessel automatic New Twitter - @bollocksreally, Wed 3 Dec 2008, 23:45, Reply)