Matchmaking from hell

Can someone please tell me why I always get into 2-3 chill lobby’s at first after these three rounds I am suddenly playing against Mossad, SEAL Spetznatz Team 6? Because if it’s supposed to be “skill based” I can tell you it’s not. I am a casual player I am neither trying to win the E-Sports championship nor am I training for the next US invasion of wherever they decide to invade. So please fix that **bleep** matchmaking already.