Can my dad force me to live with him?

Oh my, I believe that once you are 16 the choice is yours. But regardless, if you tell your advocate about the abuse (and can offer up evidence, especially) then he can not and will not see you again. Explain to your advocate why you are uncomfortable living with him, please. I think telling your mother (are you close to her?) might be very helpful as well, seeing as she will know more about the legal system as an adult. I know it can be very difficult to talk about these things... but it will only get better if you do, and that way you can find resources to help you heal. After this is all over with, I would highly recommend therapy. If you go, explain that you do not feel you have a disorder (unless you do), but that you have experienced a great deal of hurt and feel expressing it and learning how to cope with it will benefit you. Chances are, this will all help you move forward, and prevent you from getting into harmful relationships in the future. Good luck!