My mom is crazy, please answer?

Well, my mom drinks and treats me like garbage when she drinks. I wanted to go to my dads, but she thought I was mad at her, so she wouldn't let me leave. So when I tried to slip past her, she kept shoving me back into my room. She continued shouting at me, and everytime I tried slipping past her, she yanked me by the hair and threw me onto the ground. So finally, I ran very fast and shoved her out of the way. She fell backwards onto her back. I finally got to my dads (asking my best friend for a ride). My mom is very nice when she is sober, so what the heck is going on?