Dd14 has been struggling due to her dad being abusive, not violent, all mind games. We split a year ago. She disengaged from school months ago. Today she hit a girl, it's on film so I can see she instigated it. I've been as supportive as I can but this behavior I am punishing. I've taken her phone and grounded her. She's been having a meltdown for hours. Threatening to run away, being violent and intimidating, etc. I've locked her in but she's not giving up. Wtf do I do? She's even threatening to jump out her 1st floor window. I'd die if she left the house in the dark with no phone. I'm at a loss 😢