I'm sorry to hear that. Hearing loss is no laughing matter and my hearing could be better too, so I can relate.
I remember going to nightclubs in the late 80s/90s and thinking that the noise level couldn't be safe. It hurt my ears and then everything was quieter afterwards for a while. Wish the internet had been available then as I'd have avoided those places like the plague. It's similar with concerts too, but thankfully I never liked them anyway, so didn't go. I have other, medical, issues too which reduced my hearing quality somewhat.
Thing is, hearing loss seems almost guaranteed in police work since you carry guns and may well have to use them in your duties when dangerous situations arise. There's no putting everything on pause while you fumble for the hearing protectors first!
I didn't realise that guns were quite that loud until I saw this video. Used properly, the internet is a helluva'n educational resource and is something that we tend to take for granted nowadays.