so how does this mini season end thingy work? cuts off today right?

title, mainly as i want my mmr to fking get fixed, ever since riot yet again completely dicked matchmaking (with the mmr reset) i have lost 20 lp per game and gain around 10-13 at best, it is so damn difficult to get anywhere when im constantly stuck with people that somehow lose winning lanes, or for what reason run into the other teams blind jungle and dies over and over -_-

not saying im perfect far from it, though there has been SO many games this season where i get fed out of my mind, yet cannot win due to terrible map movement by teams, even if i get on a decent win streak it takes 3 games to shit on that, back to 0 LP......