If it’s no longer fun, play something else. Life’s too short to waste time playing something you don’t enjoy in your leisure time.
I quit a while ago as well. Nowadays I mostly play casually with friends when they need an extra person in the team. Myself, I wouldn’t boot the game to play solo anymore. But it’s still fun enough that I keep an eye in the forums in case something interesting happens.
Hope you have fun in your next game. I will even recommend you to play Celeste and Monster Hunter World, two awesome games that rely on execution, and will give you a break from FPS, competitive and multiplayer games, so that you can “detox” a bit.
Good luck and have fun.