There is a lot there that sounds like my 15 year old DD, we are currently on the pathway for an ASD diagnosis - we are around 12 months in, so lots of assessments done … and it looks like “high functioning autism” (I am aware that phrase is a bit loaded). This means she has no intellectual disability, but gets lots if anxiety in social situations, has the hyper-fixations, sensory issues etc.
Taking away her electronics never worked, shouting never worked, being in any kind of conflict never worked … she would end up with a panic attack, hands over her ears, sat behind her bedroom door (so I couldn’t get in).
We have accessed lots if support from various organisations, who have helped me to understand how to parent a child with ASD. We have a great relationship now, she’s really good comes by. Biggest problem st the moment is that she hasn’t been to school in a year … she’s a clever girl though, and if she takes a couple more years to get her qualifications, she takes a couple more years. Her mental health is the important thing.
She’s 15, but the way I see it is that she’s about 2 years behind … but lots if young people are at the moment.
I also actively spend time in her world (even though they are things that don’t really interest me). I know all about BTS, Genshin Impact and NHL, this enables us to have conversations, and spend time together .. it’s nice.
Go to the GP, get a CAMHS referral, read parenting tips for ASD children … the strategies you are using are not working, so use some new ones.