I (22F) Just got a new job a couple days ago this is my third day and a customer complained about me today. 

I was in a new department that is similar to the other I’m in and I was helping this lady find something to see if we had it in stock and we did and usually I can write down where to find it and they look for it and just when I had handed her the paper the phone kept ringing and I tried answering the phone and it wouldn’t work and so it just kept on ringing and I started panicking and so I look at someone from a different department and he comes to help he answers it and I sit back down and help the lady and all of a sudden he leaves quickly then a girl comes to ask for a code for the restroom and I tell her she can ask the front desk but she tells me no one is there so I tell her ok let me quickly go see and after I’m trying to go back to my station and then I get stopped by someone I helped earlier and she needs something and the customer and a coworker starts walking with me and they are telling me how what she needs can be done at my stations and she shows me and the lady that was there in the beginning is gone and at that point I’m already overwhelmed because it’s my third day I didn’t see anyone superior to me when I panicked and I forget about the lady and I walk to use the restroom 

Later on in the day a coworker tells me that a customer complained saying I didn’t help her find what she needed and she was upset. I was told they can fill out a form and I could get in trouble and my supervisor would have to have a serious talk with me. He said thankfully she told him and not a superior.I asked what could happen when someone complains about you and he said worse case scenario you have to have a meeting in admin and have a conversation with all managers and go step by step on what happened. As an anxious person I am panicking and freaking out and it’s my third day and I’m usually left alone and they barely taught me some or most things to know but I knew I should have remembered to help the lady I was just so overwhelmed and panicky when everything was happening so fast.

I’m now crying due to my overthinking anxious self and I go in tomorrow and I’m panicking and I want to quit.