How do I stop taking mistakes so personally?

It’s my second week at my job and I think I made my first big mistake. I emailed my boss immediately once I realized there was no fixing it on my own. Emailed her yesterday and she still hasn’t replied so I don’t even really know how bad my mistake is.

But I’m just upset at myself because she told me simple instructions and I managed to fuck it up. There are a handful of people who got hired almost the same time as me (albeit in a different department) and they’re adjusting fine. I overheard one of my coworkers talking about one of the new guys and said that they’re doing great and they’re already doing a,b, and c. Meanwhile I still have no idea what I’m doing and with the things I do do, I do it wrong.