I've been wanting tattoos for years now but my anxiety has stopped me every time. My biggest problem is shaking when someone I'm not extremely comfortable with is too close/touching me (like when getting a haircut, someone is doing my nails, and having my teeth cleaned at the dentist. These situations are very hard for me). 
I'm not scared of the pain or permanence, it's just the fear of getting shaky when i know i need to hold still and then ruining the whole thing and also making a fool of myself. Does anyone have advice? :(