Noise-cancelling headphones are my constant companion. Disability-rights laws require employers to provide reasonable accommodations in the workplace. Talk to your employer about your disability and the coping mechanisms you’d like to use at work (and follow up in writing so you have a record if it goes badly). I was able to get accommodations to wear noise-cancelling headphones during the bar exam, where it is notoriously difficult to get dispensation. Of course you know your employer best and what they will and will not be receptive to, even if the law requires it. Good luck!