I'm blessed with excellent hearing, especially for my age. There are those who post here on A'gon who can relate to your question though. You can find them on any of the after-market fuse threads. They are known as "The Naysayers." :-)
"...russ69, you seem to know more about this than any one. Is it possible to get perfect hearing with hearing aids?..."
Maybe I should not post this but I have completely lost my hearing in one ear. I have recently had cochlear implant surgery. The sound of the implant is poor, like a cheap transistor radio with a busted speaker. On the other hand I did get a BAHA (Bone Anchored Hearing Aid) demo and I thought that sounded very good. The BAHA uses your good ear so you would still have single sided hearing. I have never had traditional hearing aids because one ear is non-working and the other ear is quite good.
You should see an ENT and see where you are and go from there but from what I'm told (and I asked many doctors) there is no replacing the hearing you once had.
I had the hearing tests done, and I hear half as good in my left ear. I forgot the precise results, but I'll get them and get back to you.
I trust you more than people in the hearing aid business.
I spent an awful lot of money seeing specialists about back problems when nothing could be done, but doctors kept sending me to other doctors; I'll never repeat that again.