Extreme Psychopathy/sociopathy?

Hello ive been looking for reliable advice on what i should do but i have to do something before i go too far. I have absolutely no emotion and am completely antisocial. I hate everyone around me including my family and i hear voices which tell me to kill them. I cant stand being in public and i isolate myself whenever possible. Worst of all I enjoy killing and torturing animals for fun but I need to do it to keep the him at bay. I have tried to kill myself when I was around eight and i know this was caused by events in my childhood but I need to know what to do because I am trying to fight the impulse to kill people but I can't stop him forever. Please help.

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