Trolls all day

so i m having this series of bad games in which i m matching with ppl with like 40-50 wins ( i got 450 ranked wins tho) dropping my win rate down from 50% these ppl cant even farm or build. i have no idea what to do from like 4-5days . i heard i match with noobs cuz i had some gud games i have no carry them blah blah so with tht logic shud i play real bad so i get match with some gud players or what...i cant understand