Dear Forum Whiners, Learn from AA groups
The first step to improving is accepting that you have a problem.
Blame feeding and trolling teammates = have fun in your rank, you belong there and won't be moving up until...continue reading
Blame self for mistakes, lack of awareness, lack of teamwork, lack of self control, poor farming, poor champion/item choices = learn what you do wrong consistently, get better, profit with higher rank and ultimately play with fewer "faultless" players at higher ranks.