Self-hating gay, any advice?

I'll be blunt, I've had alot of bad experinces involving other gay men for about a year, one hurt ater another which drove me to burning my arm with cigarettes and being vunerable to other predators, I'm at a dead end, and the last thing I want is for a guy to even touch me 'cus it would make my skin crawl, nevermind have a relationship or find love… so what is the pooint in my life? That's what I'm trying to figue out, is there a way or me to compensate? I don't think burying my head in the sand and totally distracting myself would be a good thing, but it seems to be the best of few options I have.

I keep telling myself that the only guy I can tust is myself and that all other gay guys are twisted, no good, cheaters, and that I don't want to associate with them, but what kinda life is that for a 17 year old when my and clubbing life should be starting? It isn't anything personal but it's my defence mechanism and it's used so I won't allow myself to get close enough to another and end up getting hurt 'cus I'm sure it would send me over the edge.

Right now I'm in a not caring phase, I want to throw my life away, take drugs, be an alcoholic, and live secetly hoping that my carelessness will end up with me being dead.

The reason I probably find it so hard is that I'll admit I spent alot of my teen years daydreaming about love (like most do) so it's hard or me to just disconnect and change my life so suddenly in a negative way and that I feel like I can;t open up to anyone or when I want to people don't want to listen about it so it kills me more and more inside.