I found bisley to be as you described so my son and I stopped going.
But 5years later I found a small club near Sevenoaks that I can shoot at every day if I want but I go Tuesdays I have meet some different people all love shooting guns,all have a comment to make about my bad shooting .
We go to bisley once a month 600 yards generally, we all sit together help each other,sometimes not so helpful.
But they have introduced me to another part off bisley that I wasn't shown before.
I now go when ever I can ,I am trying to shoot f-class to a reasonable stand with help and advice of members on this site.
Don't retire find people that you can enjoy your shooting with