ranked system

HOW THE FUCK DO I NEED TO WIN THIS GAME WITH SUCH A TEAM, EVERY TIME I PLAY RANKED I GET SUCH A HORRIBLE TEAM AND END UP LOSING! SO YOU BETTER GIVE BACK MY FUCKING LP AND FIX THIS SHIT. Last game i played galio and i shall give you my team stats rengar: 3/10/2 neeko: 3/8/1 galio(me): 5/4/2 kaisa: 0/9/1 tresh: 0/10/1

and due to this matches i went from silver 2 to bronze 3, this is not how I imagined the game would be