Violent? The moment it looked like it would turn violent, is when I would tell her that I hope she enjoyed government issued bracket, because if she lays a finger on you your calling the cops. Your not a little kid and that would be assault. It sounds like hell in your house and I'd be sleeping at the Salvation Army or couch surfing or visiting an aunt or something. You are not helpless and you are not a child. I'm beggining to wonder if you really DONT wanna leave and instead would prefer to get sympathy from others surrounding your plight. Not trying to be mean here, but seriously, if you have 2 legs then your mobile, car or no car and screw the lack of sidewalks. It's your mental health. But, if your story is true and this woman is on you like white on rice all day long and your physically larger then her then call BS on this crap. Hell call the university and talk to there counselors and see if they can't provide dorm housing for you until the semester starts. There is always a way out as an adult, it may not be the most comfortable way or,the easiest way but there is a way, unless she has you physically restrained in that basement,then pack your stuff and tell her to get bent.