Mythic plus frustration

So i am aiming at doing a 15+ myth dungeon. The only way for me is to boost my own key. What i dis so far is some +14s. Last two weeks i got Plaguefall +14 and then the frustration begin… No xp players want to do PF 2-14, spending 30min grouping results in someone leaving after the slightest mistake. Then i get the key to +13 PF. Again the same thing, no one wants to do this dungeon… I gather what i can and someone leaves instantly after its not gonna be timed. Last week i got it to 10 until managing to time it. And this week again is going the same way…its frustrating, clearly needs balancing.

Why are you posting on PvP Lfg forums lmfao