How old do I have to be to decide what parent I live with?

12 it's 12 my dear. Sorry for what you have been through. If you are having troubles and have no one else to turn to.You can go to your school counselor.It is their job to help. I don't know why or who forced you to live with him. You did not say. If you can talk to your Mom try to talk with her first. You have said nothing about the situation that caused you to be forced to live with him. So it is very difficult to advise you. Only the typical stuff you can do in a situation like this.If you have a trusted Grandparent or other relative. You could go to them.If nothing else there are attorney's who will help you for free.It's called emancipation.Some attorneys do what is called pro bono cases. That's all I really have to offer. Other than look up Narcissism, psychopathy, and codependency .Read about them see what you think. Does it sound like your Dad?

talk to someone in cps about it, maybe they can put you back in with your mom

Here in Texas (USA) it's 14. However, a 13 year old can write a letter to the judge via the parent he wants to live with. The judge is not forced to go along with the 13 year old's request, but the letter carries a lot of weight with the judge.

It depends what state you're currently in. If you can, save some money up so you can move out when you're older (I think 18). Call the cops if it's extremely severe, they'll talk it through. Also try and go outside once or twice, makes some new friends and walk around.

I was 13 and I was able to decide. I believe it varies by state.