Only sounds normal..for scizophrenia.

You can be angry enough at someone and hate them to the point where you don't care if they die..... But to have a voice in your head that actually tells you to kill people isn't normal. I'm guessing while at school you don't see anyone else talking to themselves..right? Might want to get help before it gets worse.

I don't know how old you are but..you might even be able to get help without your parents or anyone knowing...if that's a problem for you. Start with asking your regular doctor. Call the nearest mental help place and just ask them. I think a lot of teens would get help with more stuff if they weren't embarassed and wanted to keep people from knowing.