<human>: I work at a hotel restaurant, and completely forgot to write down a guest's name for room service. This turned into a total scramble for me to try to figure out/remember what the guy's room number was--to no avail. I broke down and told my manager, and he basically told me, "This restaurant is my problem area. You don't remember it at all? I'm giving you a hard time because I've just had to comp a $150 bill because a guest called down and never got room service." 

I don't know anything about this, but my manager made me feel like it was my fault. Finally, the guest whose room I forgot called back, I gave him his meal for free, and he was totally fine with it. After all that, though, I can't shake my boss getting upset at me. I know nothing about the other guest who never got service--I always answer the phone and provide room service when I'm at work. Nonetheless, my boss made me feel like it was all my fault. I'm stressed out and feel like I screwed up.

So, reddit, how do you deal with screwing up at work? I accepted responsibility, but now I just can't shake off feeling bad about it.

Provide a brief overview of the text.
<bot>: Screwed up at work, nothing major, but totally my fault. How do you get over screw-ups that you make?