I just started a new job as a cashier in busy grocery store last week and had 3 days of training. I think I’ll be okay but sometimes customers ask for things I don’t know about, or sometimes ask to cash checks and I’m not sure I’ll remember how to do it when the time comes. I’m really worried about it because will be working by myself and not sure what  to do if someone does ask something I’m not sure about😞 
Really trying to not think about it but can’t keep thoughts away