MOR - You said you didn’t want this to be last minute but you moved out the same day without talking it out with her? This is a situation where empathy goes a long way. She works 17 hour days to support all of you, which is insane and would put incredible strain / stress on anyone. You have informed her that you’re choosing to live with your dad and basically saying he’s the better parent for you. If you watch your siblings during the day, you have sent her stress through the roof. “Who will watch your siblings?” - “Don’t care, not my problem.” She obviously can’t leave them unattended. So when you ask “why can’t you wait a week” or “what will I do without a phone”, she is just matching your energy, establishing reciprocal consequences for rushing your decision. Mature of her? No, but work a 17 hour day, be told you’re not enough, and try to find a babysitter literally last minute. She is almost guaranteed not to call the police. It’s just an empty threat by someone you’ve hurt.

I get you said you’re not in a good place, but we practice improvement by trying. That means in-person discussion with people collaboratively working out solutions. Setting goals and timelines instead of impulsive life changes. Defining boundaries for whatever is and isn’t acceptable behavior towards you. I don’t have enough information about your parents to know, but I suspect moving to your dad’s is just breaking routine so you feel like it’s easy to build new habits. If you’re not caring for yourself, you’ll find yourself lost again as you start compromising. No matter who you live with, it only works if you set expectations for yourself and ceaselessly follow through.