What disorder do I have?!

The voices.. ? is there anything specific they say, like certain words?? because this can be relevant to certain disorders. It does sound like you have some kind of personality disorder and should consider getting yourself some help. Id recommmed getting yourself a psychiatrist, and you could do this through your doctor, but going into a paychiatric hospita should be a last resort as they can be really hard to get out of. I knw because my cousin has been in one for about 7 or 8 years now and they have only just moved him down from highest security to medium security unit. Soc consider the seriousness before you male any decisions. A psychiatrist or similar would be your best bet, in order to help you through all your problems.
Good luck x

you probably want to go and see a psychologist/psychiatrist to help you with the voices and the rage. Immediate help will be with medication

help yourself so go and be better than you feel now and before you get to the point that you are no longer rational

You may have either schizophrenia or a personality disorder. Yes, that is enough to get you sent to a hospital.

Possibly Schizophrenia. And depending on how bad, it CAN get a person spych evaluated, but not likely

lacking attention and want to skip school??

This would do it. I suggest you also say you want to suck blood.

Yes