Help! im a prisoner in my own home?

iim a girl that just turned 13. im doing a summer math program, today my mom kept interrupting me, i told her to stop. my dad took my stuff away. theen my dad started telling me to shut the **** up aand threatened to hit me.us in the past my dad strangled me when i was 8. and has done so two more times recently. he never lets me go over my friend's houses in fear ill tell them all the things hes done to me' though i have the scars to prove it. a few scars on my arms due to me cutting myself from his vicious name calling, scars on my thighs, my nightmares of hiim murdering me, and my stacks of songs, stories, and poems of girls that are abused too. right now im locked up i my room luckily my wii has internet. but i cant call people. i have my window blinds open in hopes i can grab a neighbor's attention. my dad has brainwashed me into not calling the police, but im tired of being treated like a parakeet. my dad showers me with love. but im starting to think its to just get me to shut up. help! also dont tell me about my mom shes punched me, pulled my hair, and beats me.