Dear Aks~
Welcome here to the Forum, anxiety about a new job is very natural, particularly as the last one did not work out well. I think you are very wise to choose a less busy clinic with less pressure as a result.
Most well run clinics will not expect a newcomer to know everything and normally there is someone around to give advice or help. After all it is in their interests to have a knowledgeable receptionist who is familiar with their software and procedures.
Even so before you start and for the first little while you may well be very anxious. I have an anxiety state and have found that to get me out of that loop of worrying what might go wrong I use a free smartphone app called Smiling Mind.
This has umpteen exercises for all ages and all types of people. It basically lets you concentrate on one thing, from your body to a leaf - a big range. It does take practice and you do have to find exercises that suit you. I started with a young person's anxiety exercise and went on from there.
It works surprising well , breaks that loop and leaves you calm. I use that calm to do something I enjoy that distracts me from life. In my case a chapter in a favorite book, though it could be anything - you would know what suits you best.
Please do not expect perfection from yourself when you start, everyone takes come time to get used to things.
Wishing you luck -if you felt like letting up know how you get on htat would be great
Croix
