Family problems?

Lately I've been having a lot of family problems well more like for a couple of months now.My mom has made things worse for me and my life.I'm 18 now and she still wants to control my and basically have it her way.She never wants to listen to me or what would make me happy.We been fighting for a couple of days now and it's not getting any better.I had plans to move out with my boyfriend of 3 years.I would much better bd with him then my family that always put me down.My mom never bothers to understand that I'm anger cause of her and makes me go to doctors like something is wrong with me.I've told her many times what was going on and she could careless when I say it but when I get mad shes like what the hell is wrong with you.My dad isn't a big part of my life .I have a sister that's moving out soon with her boyfriend and my brother will not even care if I'm gonna.

Am I doing the right thing here and finally doing something I want to do in my life?