Why the game always matchmaking you to make you lose after some wins ?

I played around 2 hours qent from 9500 to 9981 without losing around 15 matchs and yea suddenly in the last one..logbait... Lose ..and after that i cant win ...lose lose..win win lose lose lose win win lose win...like something its blocking me to reach like they said NOPE ... Hate this matchmaking after that everywhere lumber loon 0 IQ logbaits... Etc... Im so tilted