@probablywriting , you can receive a high-quality great education at a lot of schools that do not use the CSS Profile. I suggest you stop dreaming that your father will miraculously change his mind and decide to pay for your education. Even your mother isn’t trying to fight this. Your decision now should be to research non-CSS schools and start applying to those that you feel meet what you want in a university. Apply to your pie-in-the-sky schools if you wish, but also apply to the ones you know your mother can afford on her own.
Another thing to consider is that your FAFSA EFC does not guarantee that your college of choice will meet your need all the way to that amount. You should run the Net Price Calculator at the non-CSS schools to see what each school estimates your financial need to be. That can be very different from your FAFSA EFC, and it can vary from school to school.
Your best bet will be your in-state public universities. What state do you live in?