Not the normal raging.

Okay. So I am not the normal rager. I enjoy league quite a lot, and want to advance in rank. This year i was put in bronze, which is slightly annoying cause i dont think I should be in there, but okay. So I am trying to get out of Bronze. Today I go into a match, and pick j4 against a rek-sai (first time against her btw) The top is darius, mid is lux, and bot is cat, with a shaco support. So i get in, and after leashing, I go level 2 gank and get darius first blood. I then invade their blue side, knowing a bit about rek sai and guessing she will do the same. I then just farm a bit, and go back to top, where i misplay a bit, and get killed by the riven. I then farm, and try to help mid, who is failing miserably. I get the kill, and farm till dragon. Before dragon, I am told that I lost bot side...which I never went too. Then I try and get dragon, succeed, and my team tries to fight a 2v 4 afterwards, and i die trying to save them. This happens again and again. The point is, I am not a perfect player, but i try and i cant progress up the ladder if there are always trolls. I want advice, and I have thick skin, so let me know what you think.