Everyone has bad games. I'm not terrible at LoL but I still have games where things just go wrong at every opportunity and I end up not being able to even defend a tower. Doesn't help when you can't even die once without someone shouting at you half the time which doesn't put people in a good mood.
The community of this game never ceases to amaze me though. I had someone call me a "noob" for not going back when I was on low hp (I didn't actually die and ended up healing back to full HP) only for him to end up on 0/10 as Twisted Fate and then used "It's my first game as TF" as his defense. Surely if it's your first game as a hero you shouldn't be calling other people "noobs" ?
This is why I don't solo queue now.