It sounds like you’ve done a wonderful job preparing yourself for your future. Congratulations!
It’s rough to deal with a parent who just won’t approve/accept/support. I’m so sorry you have to deal with that. It is not your fault.
If you want someone to talk to and can’t go to therapy, you could try a listening line such as
Caring Contact - We're Here To Listen
Hang in there! I bet you WON’T be back in six months.