I am so tired of grinding comp

Every time I practice and play competitively, I get deranked because some idiots, or sometimes me, lose. I lost FIFTEEN MATCHES and am NOW IN GOLD 2 BECAUSE OF THIS FORSAKEN CURSE.

Because people either play Mantis, Penni Parker, Squirrel Girl, Punisher, Luna Snow. You know, the annoying enemies!

Does anyone feel the same want to uninstall the game?