You need to hunker down and get out. It's not going to get any better - especially if you're still relying on him. The only way free of the abuse is to get free of him completely.

1) do whatever you need to do to get out. Sell what you have. Take an extra job. It's better to suffer with no comforts than to suffer physical abuse

2) the car is a convenience. Not a necessity. My great uncle rowed a boat to work 2 miles each way. It took hours but he did it because he had to. Kids in some countries walk 5 miles each way to get to school. Sure, it sucks. But it can be done. Find a ride share from a neighbor going in that direction. Look into public transport. Find a housing situation that would allow you to walk or bike to work. Sure it will suck. But being at home sucks more.

3) Does your family belong to a religious group? If so talk to her head of your church/temple/mosque. They know lots of people and I'll bet they could help you find a temporary solution...with housing and ride sharing.

4) Work. Work. Work. It gets you out of the hous and helps you save more money more quickly. Get a second job...maybe you can do some teaching at the place you study fighting. Or tutoring. Or house sitting. Dog walking. Just plan to work your butt off for the next year. It's an investment for a more peaceful future.

5) by getting out you are showing your mom that escaping the cycle of abuse is possible. So do it for yourself but know that you have the change to inspire others to reach for a better future.

6) I wish you well. Spend your time getting out. Don't try to prosecute or change your dad. He's going to want to keep you under his control. So the only way to change your dynamic is to be in control of your life.

Good luck