I’m normally one of the top earners at work

Last night I did very badly , the manager asked what was going on with me , she said it wasn’t like me , she said I normally smash it and I’m always back and forth from the dance rooms , I said I don’t know. I got plenty of sleep for once and I ate and had coffee before work , I taken cbd for my anxiety and I still did badly. My hair and makeup was alright so I don’t get it. I was dressed up too really well. My friends was in. My crush wasn’t in either so it made it easier but I just don’t get it. I’m normally one of the top earners.