My sanity is unraveling

I don’t know if I need a ton of sleep, some anxiety medication, some adderall or what, but I’ve been in the weirdest funk the past week.

Last week I got some training for some new duties at my job, which entailed some 12-hour workdays. And I don’t know why, but im terrified. It’s like something isn’t clicking. And because of that, I’m beating myself up because I just dont want to let anyone down. I’m scared I’ll make a colossal mistake and everyone will hate me. As dramatic as that sounds, that’s what’s really going thru my head lately.

Before now, I was just doing shipping/receiving and inspection of what we receive. So far, I’ve made a few mistakes with it, but none terrible. And everyone says I’m doing fantastic. So what am I so scared of?

I’m supposed to be starting purchasing, which means buying the stuff we sell here from various suppliers. And so far, I’m not getting any traction because I feel like I’m not focusing on it. I feel like I’m missing something. I don’t have a clear direction of what I’m doing. They’re all counting on me to start doing this stuff, and I don’t want to let them down. I see what my colleagues in this position do every day, and it’s so overwhelming and I don’t even know where to start or how to even ask for help. It’s like gridlock.

It’s like my brain is attacking me. It’s so overwhelming and I feel like I can’t talk to anyone about it. I feel crazy and stupid and like I don’t belong here. What should I do?