YOU CAME HERE TO WIN.
Too frequently do I see people die and lose games because they didn't have their head in the game. They don't take it seriously. They die because they got a text on their cellphone from their friend and just HAD to answer it. They lost lane because they were too busy thinking about their classmate's boobs. They lost the game because their dog had to poop.
I'm going to be frank. Knock that sh!t off. You came here to do your best, to win the game, to climb out of the trench that is Elo Hell. Remove head from bum and get into the game!
Good, you're in the zone. You're focused. Now, you prey on the people who aren't. Your goal is to poop on those who aren't focused or can easily be broken. Identify which players fit into that category and constantly assault their weakpoints without pause. This is called Attrition. Using this technique you can quickly batter and break a team's will to fight. This is called Demoralizing your enemy.