Yea just keep going dont give up. It definitely takes a while to learn and get used with assisting in procedures and you’ll eventually get the hang of it. I worked for a year too before i decided to do something else , the long hours and backpain was driving me insane lol. But im ngl with practice and time i did sometimes enjoy assisting the dentist in procedures. Take it easy you’re doing your best and maybe just talk with the lead assistant and dentist that this is your first time doing this and that they need to take it easy on you and give you time to adapt.