Please Help ME!!!!!!!!!!!!!?

I am angry all the time i take my anger out on myself. I hate myself. I want to die at times. My parents hate me and i am contemplating suicide. This never happened until i tuned 13. I used to be relaxed but now it's like if someone says the wong thing to me i go off. Or if i do something wrong i call myself names and hit myself. Is this a mental condition or what? Help me Please.