I don't know what to do to get over my dream school rejection and other things.

Important Research Needed before you choose to cut ties completely with family. Please get in writing from the college financial aid department the rules for getting your scholarship. Some colleges will require FAFSA to be filed, even if you have a full ride scholarship.

So you may need parents (or a parent, not sure if parents are divorced and if both would have to sign for FAFSA.)

I am hoping a parent who knows this subject matter well can jump in and comment on this.

Two quick nits:

"UC-Irvine is a very good engineering school "

US Irvine! This is a great school. Many years ago my father wanted me to apply to UC Irvine. There is absolutely no reason to feel bad about going there.

“Important Research Needed before you choose to cut ties completely with family.”

Try very hard to never cut ties with family. If ties do get cut then wait a bit then try to retie them. You can disagree very strongly on specific issues, and even find them annoying and insulting and condescending. However, your family is the family that you have, and you can’t get another one (other than by getting married and having kids and trying to do better than your parents did).

I might add, for people whose parents don’t talk to each other: Try to see if it is possible to stay in communication with both sides, and if you do don’t blame either side for not getting along with the other side. Divorce is common and usually too complex for the rest of us (even children) to fully understand.