Soldato
Try to focus on your own gameplay rather than what people think of you, it helps.
Also, you were pretty fed, im assuming you dominated lane, did you start to roam bot lane or top to try give them an advantage? You can go 8/0/0 in lane but if your not helping the other lanes get ahead then your 8 kills 0 deaths is worthless.
Just try to ignore what people think and you should improve.
Yeah I always roam after my first few kills in mid, thats how I got most of them in that game.
They would always manage to get out of position though and die solo which is why they fed there kills to the enemy team.
That is usually what happens.
My last game as syndra I was 26/9 by the end, I roamed half the game and in team fights I would always remove the adc/apc but the team would just not commit or focused the tank etc lol.