Here is a tip: Don't be rude to the person carrying
I was 5/0/3 in under 10 minutes in my last game as hec jungle. Was on the way to absolutely demolishing the game. There were TWO groups of duo premades on my team, all of which were feeding. They decide to start being disrespectful and harassing me for NO REASON other than I wasnt helping them enough. Needless to say I lost "interest" in trying so hard to carry and we lost.
Just a tip, if you are one of those disrespectful jerks who feels the need to harass everyone because you are just better than them, don't harass the person carrying your heavy ass. Seriously, only thing worse than being an asshole is being a dumb asshole.