I hear you. I play solo most of the time and my friends list seems a bit useless these days as 99% of them have achieved everything and moved on. I didn't do the trials page or the raid page and a dozen other things due to lack of team mates. That sucks but I'd come to expect it would happen. I can't keep up with the younger players so I just do the best I can and enjoy myself rather than worrying about spoiling their fun or having a KD of this or that. It's just a game.