mom and I don't get along

my mom and I simply don’t get along. she get’s upset at me for eating junkfood and not exercising enough, even though she eats a lot more junkfood and never exercizes. she never believes me. for example she’ll ask me if I have a phone in my room, I’ll say I don’t and she says yah right and goes through my whole room. she practically calls me fat, when lets just say, she shouldn’t talk. she also has called me an ungrateful brat. she expects straight a’s out of me in school and flipped out last year when I almost got a b. almost. she’ll brag about my brothers to my relatives, but only speaks about the bad part about me. we’ll be sitting at dinner infront of my brothers and dad and she’ll ask an embarrissing -supposed-to-be- only-mother-daughter-question. she feels the need to yell at me once a day. I seriously can’t remember a day when she didn’t get mad at me for something, not counting when I was away at camp (the reason I love camp so much). I AM NOT EXAGERATING ON ANY OF THIS.

I won’t lie. I’m not the perfect daughter. I’m a slob and constantly bicker with my little brother. but hey, those are common teenage girl faults. I get straight a’s ussaully don’t yell back at her, never get in trouble in school or break the law (which is more than I can say for either of my brothers), I’m not a picky eater, I do my chores, I’m in advanced classes at school, I’m fairly nice, and I’m good with animals (something highly valued by others in my family). you would think that those out way my faults, but not to her.

I’ve tried talking to her, she doesn’t get what I’m saying. all I want to know is how to survive the remaining years with her without loosing my mind, running away, having a mental break down, becomming anorexic, or changing who I am.

please help.