Have you been playing since launch? I took the month of September off and came back last week and am having fun again. I'm already getting fed up with quitters in competitive but a few games of quick play get me ready again. Take some time off and come back. It helped me.
Sorry quick play has been shit for you. I use it as a stress relief and don't take it serious at all. I would like competitive to be more serious but the damn quitters are still a problem. I'm stuck in the 2200 range because too many quit and the losses keep me from moving up.
Yeah I've been playing since launch and I'm also trapped at 2200 hell. I've heard that the quitter problem goes away when you break 2500 but good lord it's painful. So I think you're right, just taking some time away and letting the game become refreshing again might be for the best.
I actually don't know when it happened but at some point QP actually just became awful, I went from having a 55% winrate in it to a near 40% even win rate. I think it happened around ana's release but I'm not sure lol.
It's just frustrating to know that when you're picking the character you want to play for fun you're actively not contributing to the team because you're down a healer and no one else is switching ;(