It does not sound like the abuse is over so I would not think about forgiving the abuser yet. Forgiveness is about having the time and distance and to look back and see a bit more of the dynamics than one can when one is living through them.

Sometimes when I get to feeling like giving up or like everything is wrong or stacked against me, I "start over". I just clear my head and heart and everything and begin as if what came before is all messed up (and it usually is) and like the cat has gotten into the yarn and I just put that mess of yarn aside for a moment and start with a fresh one.

Tell your therapist and counselor/teachers you are having a tough time of it and are feeling confused and don't know what to do next and can they help you by giving you some ideas of where to go from where you are now. See if they have anything useful :-) to say or ways to help and try one or two as best you can. If nothing else, you can re-evaluate your helpers and see if you can't rank them as to which are most likely to be helpful versus those that don't have anything to say that you can or want to hear.

Keep away from the abuser as best you can and come up with a plan to help you with his other, sly tricks for the next couple years until you can get away from home. Dream and plan how and when and why to get away from home, school or work or whatever you want for the next part of your life.