I also used to dig my fingernails into myself. It becomes like cutting: it's addictive. If you can help it, I would really try not to do that. Because it only gets harder to quit only saying that from personal experience.

As someone also with anxiety and add, I would luv to give you as much support as I can I know how overwhelming it can be. Breathe. Take breaks. The sooner u begin medication, the better. I actually found that getting my ADHD under control almost eliminated my anxiety...