I don't want to try and diagnose her with anything, but as an autistic woman around her age it seems pretty likely to me that she has it. Obviously every autistic person is different but like her, it took me a lot longer than my peers to grow up and become more independent. I also have extremely poor organisational skills and easily lose track of household tasks. It's quite sad really because I can't even imagine how much harder it would have been for me growing up if I'd been broadcasting my entire life to the internet. I wish that she'd quit being an influencer and just spend time privately figuring out who she is as a person. She surely doesn't need the extra money, she can afford to take time out.
I don't see why it's surprising that she went to see it? Just because she has a very sheltered life herself doesn't mean she wouldn't be interested in a show about different experiences

I've never fought in a revolution myself yet Les Mis is my all time favourite show