How to have fun?

Please.. i want a Rioter to also answer me this, how to have fun playing league again? every match i go is decided in 5 minutes, either we get fed or the enemy team gets fed i just can't take it anymore... i love this game but it has become really hard to play in these conditions, now i just don't have fun anymore even when i win because when i win i know that the other team suffered alot... there are no balanced games anymore. thinking in quitting league... [zombie-nunu-bummed]