Sick of being stuck in low Elo?

I have one piece of advice.

Learn to take advice. Even if it is "Stop getting caught noob". They are saying it for a reason. play safer and don't go places without vision. "Stop feeding troll" means play safer. Stop diving. Ward against ganks. Don't get defensive and just think they are being dicks. Your team wants to win just as much as you do. Sure they could go about it in a nicer fashion but the advice is there none the less. And when someone gives you real advice do not just shrug it off.

I just had a match in which Orianna kept making the same mistakes and we would tell her how to avoid making those mistakes but she just said got defensive and asked the enemy to report us even though we said nothing negative. "You dying for a kill on their support is not good" "Don't try to steal blue without wards" "Stop being in the front". She ignored us and continued to make stupid mistakes and they will keep her from progressing.

Even if your team rages at you try to listen to the advice they are attempting to give. If they didn't want to win they wouldn't rage. They would just let you screw up over and over and lose over and over.