I HATE BEING THE MIDDLE CHILD! please HELP!?

my little brother is 5 years younger than me, and my odler brother is 11 months older than me. they ALWAYS gang up on me, the middle child and only girl. ny older brother is practically perfect. he is in all honors cles, makes all the sport teams, and has tons of friends. my little brother is the cutest thing ever, big blue eyes with blonde hair. he swears to me all the time but somehow gets away with it, im so sick of it. hes a mommys little boy. and then there me, my mom always yells at me , she says'YOU BETTER GET STRAIGHT A'S OR ELSE" and then always presssures me to join sports team i dont want to. i HATE IT!!!!!!!!!SO MUCH!!!!!!!!!!!!!!!I GET BLAMED FOR EVERYTHING!!!!!!!!!!!!!what should i do?!!?!?!?!?!?!?!?!?!