Moving out would be the best option. Is there any chance you have enough saved for a cheaper rental? Is there a friend looking for a roommate? What about college housing, like dorms?

If you truly can't move out right now, talk with your therapist about ways to approach the situation. I am apprehensive about talking about HOW to start the conversation because it sounds like your father is under a great deal of stress and is perhaps emotionally abusive. Does he treat your mother this way? Could he be displacing his treatment of her onto you? While I can't offer any advice, I can share my personal experience and maybe you can glean something from that.

My stepfather, who I thought was my father until I was 23, was that way. I finally got fed up with it about 19 after being bullied by him for many years, and I asked him what his problem with me was. I informed him I was 19, in college on full scholarship, and he's always been so strict and such an *** to me. He replied that I was on full scholarship because of the way he treated me. I told him, "No, I am on full scholarship because I am smart and work hard, I am in therapy because of the way you treat me." I walked out and never spoke to him again because I didn't have to. (I had fantasized about this moment since the age of 9 when I got my period and he threw feminine products at me in the store and in front of my friends.) There was no love lost. I saw him once more on his deathbed and it was awkward because I didn't have anything to say and couldn't make myself cry. I kinda felt like he was getting what he deserved. (He died of mouth and throat cancer, most of his abuse came from his mouth.) I really don't want that for you because its awful, awkward, and confusing. I regret not telling him much he hurt me. There was a road going back though, but it would require him to stop being a jerk. I don't think he would have taken it. Because I never really had a good father figure, I kept dating men that were either man-children or much older than me. I finally married someone 14 years older than me and we were married for 2.5 years. Eventually, I grew up and didn't need the father figure I married him for. There were other things that led to the divorce such as: his not doing anything about his health, his verbal and emotional abuse, he did a lot of things I didn't like and thought it was funny to see me get mad, etc.

I am sorry that you are still in this situation and it sounds like you have a plan to get out of it. I hope you find some coping mechanism, or a good apartment, soon.