I don't know what to do

I hear voices. They're always watching me, and the things I do. I feel ashamed when I get unchanged or want to do anything personal. They make fun of me, and think it's funny if I get angry with them back. They trick me at every turn and think its hilarious. I makes me hate myself, and I get so frustrated I cry, but after a while I can't even cry anymore because it feels pointless- that would just be funny too. Because I am self conscious and expect the worst sometimes they tell me I like what they're saying, that I am 'asking for it'. I feel so low and depressed, not just because of this but because of loads of other things in my life too. Noone takes me seriously though if I try and talk. They just say that I refuse to be helped, don't listen and don't do anything to help myself. They say I don't make sense so I try and explain but they don't want to listen, I'm just attention seeking I suppose. I despair several times each day to the point where I don't fee like I can even move my body. I feel as if I went any lower I would stop breathing and float away. I want to get up but can't. The when I do I have been so low in my mind that I feel spaced out, sic and dizzy. I am on a self destruct path as well. I wanted to lose weight but because food is such a comfort i gave up dieting and just started eating constantly, anything and everything I can find. No matter how bad it gets noone ever knows, I'm just stuck here at home in this quiet, dead house.