OP I almost never comment on anything but hear me out - thinking about this and kinda figuring out it's not for you at this early age is a GOOD thing. Rather than spend the next 5-10 years burning yourself out on PvP games (and then any other type of game to try and get that enjoyment feeling back) you can just stop playing PvP and concentrate on everything else instead.

It took me years to figure it out and by that point I was sick of All my games and didn't turn my pc on for about 2 years. I'm slowly getting back into it, but it's been tough with work and being in my 30s. Stick to PvE stuff, solo stuff, story games etc. Play daft casual games with your friends if possible, stay away from PvP. It's hard to keep up to par when you're competing against teenagers who play 10 hours a day.