I need out of my life...

Soy life has been falling about. As if I’ve began a very long downhill spiral. I am 17... To start I was raped ( a virgin at the time) and my parents didn’t believe me and called me a whore saying I was asking for it. They ended up kicking me out of the house and I was living in my car.... they told me I had to have the car home or they were going to call the cops so I got in the car to drive to the drop off spot but ended up crashing and really badly rolling the car. I was forced back into my house. Since being home my parents have been nothing but disrespectful. On told of it all my sisters boyfriend has been starting stuff between me and him. Just the other day he raised his fist at me and said “ if the vp wasn’t right there I would knock you face in” and now I can’t stand being around him... I am scared of him... I told my parents and they are siding with him... he came over to the house and I was told to leave so that he would feel more comfortable in my house.... I don’t know what to do.....