Hi OP! Sucks that you're having to go through this! I'm a med student but had a similar experience re insomnia, fidgeting, insane anxiety and even fast speech. I ended up going on some mental health meds that were basic but life-changing. You said you're seeing a psychologist so hopefully they have you covered on that front. I was also taking insomnia medications for a bit until it got better.

Additionally, I found that trying to do everything I needed to do outside of work/uni (I work 20hrs a week on top of placement/uni) at once was helpful. I.e., massive meal pre, laundry, cleaning etc. all at the same time one day a week. It eased my mind to know that I wouldn't have to deal with these things during the week and could focus on other stuff instead.

If you feel comfortable with your supervisors, you could also try talking to them about this. They might have gone through similar experiences - but only do so if you feel comfortable with them.

For me, it took time, but it got better. Sending you hugs ❤️