Will my MMR return to a better state soloing?

I was duoing for a bit and suddenly stopped and now all my games are constant loses. I went from a 60% winrate, to a 20% at one point. I didn't duo EVERY game, but for a while I was. I think it screwed up my winrate I originally had, so will I eventually get to some sort of stop that will start matching me with teams of higher quality to help me climb back???