I'm sorry to hear you're feeling down oldie, sounds like you're having a rough time. Just like G suggested, go vent somewhere. Just don't end up behind bars.
Shit may suck now, but give it some time - don't write off everything and everybody all at once. I can understand that this place isn't appealing to you anymore, so kudos on taking a break.
How you cheer up soon mate, this place won't be the same without you