Hello everyone. I started working as a (temporary license) dental assistant while in university to get my full license. I even though I have Sundays off, school Monday to Friday, and I only work Saturdays and Mondays after school, I feel so overwhelmed. Even with knowing my stuff, I end up getting such shaky hands or getting really bad brain fog. My heartrate is up constantly , and I always feel anxious and irritable. 

I have an expectation for myself subconsciously to be perfect at everything I do while in the clinic, and hating myself when I do something wrong or make a mistake. 

Does anyone have any tips to help with the battle of constant perfection and new work anxiety? It's extremely difficult to find a balance. I do have moderate ADHD and social anxiety, with learning disabilities peppered on top.
 I appreciate the advice/comments in advance !