This sounds absolutely awful.
When I was bullied at school, and mocked, and beaten up outside by neighbours' boys (it got even so bad that my three years younger sister went to beat them up).
I stayed in. And read first every schoolbook I had, and did all tasks in advance, and then read through the school library, the town library for kids, and then started the town library for adults, when nothing was left.
Anyway. I missed out on childhood and friendship and first love.
First chance I left. First to the army, then uni.
Got my confidence in the army, first friends in uni, and first love after uni, halfway around the world .
If you can get help from NHS, go for it.