I do not know what to do. I have lost 4 promo series in a row to Diamond... Last game my team had a 3000 gold lead after 5 MINUTES, and yet still they manage to tilt over something and start flaming each other. It is uncanny how many games in my promos i get teammates who for some reason tilt, flame and as a product of that do poorly. Often my games outside of promos are easy and teammates are nice and never flame.
My match history. Almost every loss streak is in promos.