I’m not sure if this is going to sound strange, but I’m so accustomed to the voices of different kinds of people that my mind at this point just registers the many different accents as different voices within one accent (as in my mind doesn’t say “oh that’s another accent” anymore, it doesn’t register it) and I actually miss being able to appreciate peoples’ accents as accents, which sucks when for example you’re attracted to them.
As someone with a slight accent: good. I want you to hear what I’m saying, not my accent.
Regardless, active listening is the way to go. Learn what to listen for and maybe try to actively place the accent once you recognize the markers.
Just please listen to the words first.