Violent rage

My daughter Oceana (who I worry is suffering from PTSD from our poor past parenting discipline & has possibly undiagnosed autism & attachment issues) appeared to be getting better with staying home from school and starting homeschool, however she was lying in bed till midday and today I decided I would help her get up and when she eventually did at 10:30am after my reading to her and dropping in her room every 15 mins she was trying to sneak onto one of her old devices hoping parent controls were off – and when she’s cornered into admitting she’s not following standards she “coped” by giving me the rude finger while dancing and laughing (which I realise is a stress relief) I sometimes turn a blind eye just happy she’s up but this time I pointed out that it’s not family standards and she needs to stop it and she lashed out by violently throwing a case of craft beads at the wall next to me & shattering them – I realise that she was possibly ashamed but I said look at what you did – she said “good, I am glad” and I said that’s not okay you aren’t even sorry I will need to call the police and report this & she promptly stole my phone and was laughing – she’s gleeful that she had physical power over me and takes delight in making me obviously powerless – I want to a workman on the street to borrow his phone – and she came out and said my phone was working. But didn’t give it to me only the case – then she gave me the phone by placing it on the edge of the table to make me catch it so it didn’t fall – she expressed glee at her newfound power to make me react to her control. I am outside writing this – not sure what I ought to do. We have a “date night” together this evening – and I wonder if she’s testing to see if it will go ahead – she also has sport which she knows is “education “ so doesn’t get canceled for bad behaviour. I confess I have just this weekend thrown a plate in frustration out the window – so I am not myself fully calm but I am fearful of what she’s wanting to do… and that she could enjoy this so much she chooses not to come under instructional control – I don’t know what privileges to remove from her – can I take her room off her? Her makeup? Her furniture? We have a camp meeting. – do I remove her from it? How do I enforce that she looses out on free social time when meetings aren’t on? It’s going to be hell for me to attempt to enforce any ongoing loss of privilege – I just want her to repent and we move on calmly