Dealing with Sensory Overload and Anxiety at Work

Any advice for dealing with increased sensory overload and anxiety related to work? I’m in a retail environment, and I’ve taken on more shifts as we move towards the holidays and lost some team members. I know the lights, fast pace, standing, split attention, and noises are contributing to my sensory overload. So far all I can think to do is use earplugs. Sometimes I can’t even do that because I actually feel uncomfortable not being able to hear everything. We also have a stool at the register now, thankfully, but I barely get to use it when we’re busy. It has now, just like other retail positions I’ve worked, become a source of anxiety to go to work because I don’t want to get so worn down. I don’t like being in an environment where I have so little control, and I’m bombarded with so much on the daily. I have taken a step back from masking (ND traits), as much as I can help it, but it still feels like such an ill-fitting position. How have you managed sensory accommodations? Any advice for re-charging after work?