Im beinin abused and beating !!!?HELP?

Hi , I'm 13 my mom beats me everyday for example she punches me in my face realy hard , throws me to the wall & more . Idk why she treats me like this I never did anything to her . I have 2 step brothers & 1 step sister & she doesn't do anything to them . I cry every night it hurts my feelings really bad and makes me sometimes think about killin my self ! . She curses at me like if I was someone out on the street . She doesn't let me eat ! !!! She lies to my friends and tells them I pee in the bed everyday when I Don't ! . One time saved up 763 dollars for I can buy me and a laptop with a webcam for I can talk to my family that are not close to me and my dad tht I never meet in person !!! She took my money and bought her some clothes & she went to the club that night she took it and the next day she took my step siblings to the mall and got them shoes and stufff ! Today ( 7- 3-11) she woke me up @ 6am to clean up the house and I finished at 5pm because she would throw things on the floor ! During thta time I was cleaning up I wanted something to eat and to drink , so I went in the refrigatoer and got me and sandwhich and stuff ! And she came out of her room with a hanger and beat me with it then she dragged me across the floor ! I've been dealing with this since I was 4 yrs old & I just want it to stopp ! I want to kill mysleff badly ! Can someone give me to child protections services( when they take ur kids away ) number in gwinnett georgia or lawerenceville georgia ! Or a runway number or an orphange !!!! I NEED HELP BADLY ! B4 SHE ENDS UP KILLIN ME OR I KILL MYSLEFF