I dont get it

i've been playing this game for 4 days now and i just lose every fucking game. over half of those games are pure trolls feeding their asses off and i've been put from plat5 to g1. i dont fucking get this lp system and how suddenly im getting these feeders every game. i never used the excuse before but now im straight up just getting kids who sit there in lane and feed their asses off all god damn game. i just dont fucking get how i cant win anymore. then to add on to that, im losing 22 LP a game and only gaining 15. how the fuck do you think that makes somebody want to play.