Dental Anxiety

Does anyone have any tips or any ideas to get through a regular dental cleaning next week?

I’ve struggled to be comfortable with an office for more than 2 appointments. My childhood dentist told me I wasn’t cooperating for a filling one time and would just touch my shoulder in an uncomfortable for me way. So I switched and this dentist seemed upset when I told him my bite felt off. Switched again and the next hygienist was upset I gagged and needed suction to relax. I’m just worried about switching again. Their office seemed super nice and assuring on the phone. I’m just worried about it.