How do i learn to understand AAVE better

Im autistic and have a hard time parsing spoken language. Unfortunately the only jobs available to me are customer facing jobs. I have a very very hard time understanding black customers, to the point where i sometimes have to call other employees over to help them instead because i seriously cannot understand them. Having to ask a customer to repeat themselves 3 times and then just giving them a blank stare has made customers very angry with me before.