You did great. I had impressions done when i had to have bridges. Sat in the dentist chair and i didnt even think about gagging or v*ing. Till my dad turns round and said ohhhhh this makes me wretch and then turns to the dentist and tells them about my phobia. I panicked but got it done, it was either that or 2 gaps in the front of my mouth coz 2 of my adult teeth didnt appear.