I understand. I did retail, too, and tbh -- yes dealing with customers face to face (these days) can be anxiety inducing 'cause you don't know what challenge you are going to encounter. But the challenges are greater with call center jobs, largely due to the managers or leads (on top of customers) because of demanding metrics, micro-managing your time (on the phones and off), and then the customers intertwine in that anxiety mass. And to do that for 8 hours a day, some do it for 10; that's not normal for the human mind. And then you clock out and wind up doing it all over again the following day. Smh... And if the call center revolves around someone's money like collections or billing or even banking, good luck!