I had my first shift of my very first job today. I’m working in retail and was put on the cash register straight away. I was left alone and was told to call backup if needed, which I had to do quite a few times. I have social anxiety and the whole situation made me so anxious and I got stressed because I had to call my manager if people wanted to do exchanges or refunds, or cash out and people were getting mad at me because I made them wait. I really don’t want to go back again but I have another 4 hour shift tomorrow and I’m so scared. Is this normal? And how can I cope with these nerves?