Win streak / lose streak

Hey, is there something about matchmaking mechanic that can lead to this scenario? I climbed from 1500 to 2200 and keep grinding but then I straight get to 1600 with like 3W25L and games are really unwinable.

I play mostly 3/4 pos , pick meta heroes that I am very familiar with and I do my best to win the early to mid-game and even if I secure early game for the team we drop hard and start to get teamwipe or lose 4v5 since our pos1 is mostly solo pushing/farming and leave us die.

I think I understand game mechanics and tempo enough to say that I know why we lost them games but how is it possible that we just lose every single game wheter we losing hard 5-30 or winning mid-game 40-20. Also I had smurfs and booster(ok ppl with 5 rampages and very high winrate on timke invo clinkz etc)on my team 1time and against me like 10time.

Also I have some heroes that I W7 then L6 then W6 then L5 games and it is not random it is always just lose streak and winstreak over and over without me changing playstyle,trying less or whatever .

So my question is if there is some mechanic on matchmaking that can really just put you in a worse team or anything for such a long time.