I used to wanna run away, but it didn't seem possible, where would you stay? What would you eat? How will you go to school? Now I don't know anything about your situation but my mom was extremely emotionally and sometimes physically abusive. I hated it there and I did wanna get away, but it wasn't possible, in fact she tried to kick me out so many times and I begged her to let me stay. Whatever troubles you have at home, you can run away from them sure, but you'll have very different and bigger problems if you do.