Positive win rate,climbing but low MMR
I climbed from Bronze 2 where I started this season to Gold 2,Problem is my MMR seems to be really LOW,I can win like 6 rankeds in a row then I lose 2 and I'm back where I started and it's really frustrating to Lose like 21 LP and gain 17/18 but I'm not losing more than I win and I climbed a lot. Is there any way to increase MMR?