Can I move out of my house at 16?

Hi I am a 16 year old girl that wants to get out of her house. I have been having very bad problems with my stepdad.. He has been in my moms like for awhile sinc he got out of prison awhile ago.. He does not have a job because of his huge criminal record he basically lives off my mom spending all her money.. all he does all day is play xbox 360.. he is constantly yelling and screamin at me about everything even little things.. Like If I through the milk away because It was spoiled and he didnt believe me.. he barely lets me do anything and when I am able to go do things he is calling me on my phone and yelling at me. he recently got out of jail a couple months ago and when he was in jail me and my mom got along fine and everything was great their was no fighting I was happy.. and now that he is out of jail again me and her dont get along she always sticks up for my stepdad and lets him control my life and tells me to shut up .. I have lived in a trailerpark my whole life and in here I am having problems with many people and my parents dont seem to care or aknoledge it.. this whole house hold is always chaos and no one is ever happy its constant fightng.. I have a job I work and mc donalds and Im going to school… Nobody in my family likes my mom now that she is back with my dad.. so I really cant even talk to family about this situation… I have a sever mentally disabled brother that is 17 needs constant nursing and cant really do much Im worried about him to he cant talk eat or anything he has the mentality of a 2 year old I need help wut do I do..