Everybody already gave you good advice so I'm just another voice saying don't do that shit. Life can be shitty at times but hanging around is worth it I believe. The bad of life is never that bad, it just weighs on you when you have a lot. The good stuff... well you don't think about the bad when it's happening and you hold on to those good memories.
And personally the bad memories that hang around for me are the ones that make me laugh about how big an idiot I was, or I get to laugh at how shitty people can really be. No matter how alone you may feel every person I've known to be alone made the choice to be that way. Even if you feel like there's no one there's probably someone.