Two weeks ago my manager pulled me aside and it's come to light I made a mistake at work. A big one. I've only worked there since January so they could easily fire me. I made this mistake several more times before a senior staff member noticed. I'm now under investigation at work. I haven't made this mistake since they informed me. However, I've been off work for a week with covid and I return to work tomorrow, I'm absolutely dreading it. I feel sick with nerves. My partner asked me if I've already been fired and was using covid to hide it. That made me feel awful.
My partner was has been unsupportive. I told her about my fears and she ranted to me about affording the bills if I get fired. She's right, the bills are a concern but I feel worse than ever. I'm so ashamed of messing up at work and I feel I have nobody to talk to. I'm in tears constantly, can't sleep and have a pit of dread in my stomach. Been under investigation has massively affected my mental health. I'm convinced I'm going to get fired tomorrow when I go back.
I have no idea what to do if I get fired. I'm hoping someone will be able to give me some advice :(