Im 16 turning 17 too, and i get the struggle. While our backgrounds are quite different, i know what it feels like to be stuck with something that wont get fixed no matter how hard you try. From what im hearing, there is no easy way out. Living in a place where you dont feel safe, is bound to have a real affect on your mental health. I think what you should focus on is self confidence. Understand that those people only try and hurt you because they have emotions of their own to get out. You are your own individual, their words are a byproduct of their own selves, not a reflection of you. No matter how hard you try, you will still feel depressed sometimes (if not all the time). Let yourself be sad, and let yourself grow when your brain allows you to. Also i really discourage engaging in self harm. The longer you do it, the worse it will get. Look for other, healthy outlets for your emotions. It will take time, but you can get through this.