Am I wrong for disliking my mother?

All she does is take my sisters side. I am the youngest and they all disrespect me and talk down to me but if I try to defend myself I'm wrong. Her argument is that because I'm the youngest, my feelings don't matter as much as anyone else's and I don't have a say. All of my feelings are constantly disregarded. Any time I say how I feel she talks about how I don't have a bad life and how I live in a good neighborhood and can get anything I want, as if her buying me things occasionally makes up for the treatment I get. I cry out of frustration because no one ever listens and then im "too emotional" and they laugh at me. When I graduate I want to stay far away from my entire family and I want no contact with them. I want to live my own life and start fresh and bless them with my absence because of how they act towards me. Am I wrong for that?