How can i mak emy mom sign over her rights to my friends mom?

my life isnt really THAT hard. i get good grades and i love my mom and brother and sister and stepdad. butttt i am jst very unhappy living where i live. i just am very depressed like the minute i step into the house or find out that i have to go home. i am always more positive and happier when i am with my friends family and there is less drama and yelling and arguing. i get good grades in school, a-b honor roll and i know how to take care of myself pretty much. i am not old enough to get emancipated yet. i am about to turn 15 and i have a job and everything. i pay for my own hair stuff and most of my clothes and shoes unless it is gifts. i asked my mom if i could move in with my friends family without her signing her rights over and she freaked out and almost cried and got mad and said that as long as she was my legal guardian that i was not living anywhere but her house. but the truth is that i jst not happy where i am and i was to go some place where i am happy. please helppp!