My hearing has been deteriorating gradually for years and has got to the stage now where the only hearing I have left is some some reduced hearing in my right ear. So aren't hearing aids wonderful!
There isn't any way round deafness. All the points raised apply regarding where to sit when with a crowd, but really it comes down to the kindness, understanding and tolerance of friends! Of all the places I can go for coffee or lunch there is only one which has curtains at the windows and carpets on the floor and what a difference that makes! To be honest though, I don't think I hear any better, but it takes the tension out of the situation.
And that's the thing that people who haven't experienced hearing loss can't really understand - the sheer, exhausting effort involved in trying to follow a conversation! And the embarrassment (covered by a laugh with everyone else 😉) when you chip in only to discover that what you've been 'hearing' hasn't been what's actually been said. Or that by the time your brain has computed the sounds you've heard into words, the actual conversation has moved on to another topic. Even the action of chewing food can distort the sound of conversation. And as for those coffee machines ..... !!!