I'm going through a really hard time and I don't know what to do! ?

I just feel really bad. My dad and stepmom are finally letting me live with them. My mom is not happy about it at all and she flipped out on me and told me i was ugly and spoiled...and said some things that I can't say. and she said she never loved me anyway. I call my stepmom mom now...its more right. But i feel like...they're gonna be angry at me because we have to go to court and testafy against my real mom. and i'm kind of scared.