Rant time -WTF is this new mmr

Okay guys this is kinda melting my brain so I need to see if I’m only handless or if some of you have been experienced it: WTF IS THIS MMR?? I’ve never been through this in the 2 years I’ve been playing: I swear that either I ALWAYS have a LEGIT iron player in the team(poor guy not his fault) or I get some AFK or someone that literally ints the game on purpose, every time I win one game I lose 3 at least!!! I went from being E4 last season to P4 and now G4! And I swear I keep losing 35 lps per game and if I win I gain 20 or 22!!! Anyone else experiencing this??? Plus yeah bausen law has got deleted, sion is shit af and so on but it’s the mmr that tilts me