Yesterday my superior asked me about something I should've done this week, I didn't forget to do it, but I forgot it was this week, I remembered I could do it by next week. I fucked up. Later he had an aggressive tone and I just don't really want to be treated like that anymore by anyone, had enough of it in the past. I managed to explain how I was sorry for the mistake, but that his tone was not something I could accept. We kept at it for a bit, but in the end he apologized, I apologized for my mistake too, I made it clear that I felt bad for causing problems. He even told me that he really trusts me and appreciates how useful I've been at work, that if he didn't give a damn about me he wouldn't get worked up. I know that this may sound like something silly and of little importance, but it was such a huge victory for me, I'm incredibly proud of how I handled it, my heart was pounding so hard it could've popped out of my chest like a xenomorph, but I kept my cool and managed to be polite while still making my point clear.