Had the most horrendous day at work. There's a system which is relatively new which I am struggling to get to grips with. None of it is logical to me, it's not intuitive and every process has a separate app. Normally something like this wouldn't get to me, but I'm peri-menopausal and don't seem to sleep well other than about once a fortnight, if that. I'm also under stress as work is really busy and I've taken on extra responsibilities recently.
I told my manager how much I was struggling today and they've pulled in the project manager to help me. The project manager doesn't like me - I've heard him bad mouth me to someone in the past. I'm feeling like a failure and really vulnerable. I don't know what to do.