Ok so I've been with the same boy since I was 14 and I'm going on 17 he is going on 19. We live together and he constantly treats me like **** and chooses his brother over me he yells at me calls me a ***** tells me to stfu. I'm still with him because I love him and I know he can be different. But its like he says he loves me and is going to change but I don't see it at all. He is so quick to lave to play xbox and break up do I do? I told him I'm moving out today but is that the best way to handle this?

Personally, I don't think he respects you. You shouldn't have to put up with verbal abuse.
I would leave, and don't look back. Cut contact with him. When he comes crawling back saying he will change, don't believe him.

And how many other boys were you with before him?

Entering into a long term relationship when you were that young was a mistake. Clearly he's using you and, you are allowing yourself to be used.

Go back to your parents and move on with your life.

Yes it is. To stay with someone who treats you poorly is not bright.
He treats you this way because you stay and allow him to.