I go to work as IT. I feel like a piece of meat, a warm body not allowed to use any of their knowledge or expertise. I make mistakes because I'm just spiralling about that. Spiral more from the mistakes. Sleep it off. Wake up, and do real sysadmin stuff for myself to maybe feel a tiny bit better about myself. Feels a lot like I did in the last job, years and years ago, in which I was just a warm body. I didn't figure out then how to get over it before I was fired. Advice appreciated.