Does it really have to be anime? I mean, when in a bad mood, I aint too picky about what cheers me up, and I don't think you should be either.
What I'm trying to say is... well, look. You really, really like anime, right? It's kind of a part of who you are, yeah? And it has a tendency to make you feel better about the world.
I have the same thing with old B-movie epics. They always get me through bad times. But not exclusively. And sometimes I just needed something else to make me feel better, and I only realised it once I saw that something else.
Try Jason and the Argonauts, that one always hits the spot. Epic swords and sandals fantasy, with really cool monsters and stuff.
If it has to be a comedy, why not something incredibly absurd, like Airplane! or the Police Squad series? They'll help you get your mind of things.
I wish I could actually point you to a very good, very funny anime that can help you, but I don't really watch that stuff, so that is why I tried something else.
Hope you feel better soon.