I fail at planning my work day, I had Big task, Medium task and Small task. I did Small, Medium, and was just about to start on Big when I found out that Big was due NOW. So my boss said screw you, I'm doing it myself. In not so many words but that was the effect. In fairness, it was totally my screwup and I feel terrible. Right now she won't even accept my apology. How do I (try to) fix things?