Oh man, I can so relate to your post. But, first things first!
Congratulations on getting into the school you wanted and for persuing YOUR dream and no one elses!
I am no authority on how to get along with your parents. I will tell you that I am in my mid-life and continue to keep trying with my mom, but most of the time, we end up being pissed at each other. In fact, I blew up at her yesterday for some thing that happened a couple of years ago. I am certain there will be no reparing that explosive rage I had. And then I turned around and hugged my father and told him I love him and that I'll talk to him soon. After that I was as calm as could be. Weird. My mother is just a 'trigger' for me. And unfortunately, I just cannot be around her.
Maybe one thing you could say to your mom is that you are so proud of your accomplishments and that you are looking forward to learning. Ask your parents to dinner to go out and celebrate your accomplishments. Keep refocusing the purpose of the dinner on YOU! Maybe it might help if you asked her opinion on how to decorate your dorm room, apartment, bedroom (wherever you are going to stay while in school). Shopping with my mom is one of the rare times we do get along. That and talking about books and movies. Shallow, yes. But I have just learned to ignore her stupid responses to anything.
Now, your dad's reaction must have hurt. I know that it would have broken my heart if my dad reacted that way.
I don't know if I helped you any, but I so understand how hurt you must be. Peace be with you hon.