Hey, I know how you feel. I'm the youngest of three girls and both of my sisters have this twisted idea that they are better than everyone and anyone,which they learned from my mother. Somehow I was either never taught to act like that or it totally went over my head. lol. Now that I'm 15 and my sisters are out of the house I don't feel like I have to pretend as much or run away like I used to, ya know? I never see them or my mom very much because they believe i'm worthless and I don't want to be around it. Your not alone dude.
:D