Just a reminder, do not blame your support for what is not their fault.
I just got done with a game as Kat Support (Yes, it IS a thing) with an Ezreal adc, Jayce mid, Lee top, and Rengar jg. Now everything was going just fine early game, Ez and I put on the good poke to Jinx and Nami, but the moment early game ended and Nami started showing up mid, Jayce started getting toxic towards me for not giving him an mia. Now I would like to remind you all that bot lane is a duo effort. Yupp, I didn't give an mia, but neither did Ezreal. It is not solely MY fault. The next problem I encountered came from both Lee and Jayce over twenty minutes in, I got kills. Now, normally this wouldn't be a problem, laning phase is over and I'm Kat. Feed me. However they seemed to think that it was appropriate to shut me down and call me various names and accuse me of not feeding them (as well as Jayce accusing me of feeding Viegar with one death to his two) and ks'ing them, telling me I'm support my job is to feed them. If I were not Kat support and the ONLY ap damage on that team, that would be fine, that would be my goal. However, in team fights, a kill is a kill, it matters not who gets them. By the end of the game after enduring countless insults and accusations, I just did not care a single bit about that game anymore. I was done. That doesn't mean I didn't try until the end, but my will to win was gone. Please people, do not be DB's. I didn't feed Viegar, Jayce did. Your support is not to blame for every problem you have a your game. The moment blame is thrown, morale is gone.