How to prevent a bipolar/drunk meltdown when I move out?

your can't, just get away from her asap. I can feel for you my ex was a bi-polar drunk. He made my life hell. Things can get much worse. you have been at the mercy of her mood swings for way too long. after i left it took 6 months for me to even relax. cut all contact with her, get some sleep, and some peace. when you have rested find a good therapist. and just so you know you have to be prepared for the worst. two years after i left my ex he was shot and killed by someone defending themself. i'm not even sad.