How to get out of loosing streak
Greetings, I am asking you for opinions on how to get out of big loosing streak. In preseason,I got from Silver 3 to Gold 5, when S6 came, I got placed into S5(6W-4L).In the course of two-three weeks,I got back into G5 and then I quickly advanced to Gold 2. When I came there last week, I got demoted to G3 but with win streak I went back to G2 but from then I am on a constant loosing streak. I fixed a lot of mistakes I was doing back in silver and low gold but I simply cannot win games anymore. I know it will sound like that I whine and complain about my team, but from the begining of this loosing streak, I had at least one troll/toxic player in my team in 80% of games I lost. I tried playing multiple roles, mid,adc and jungle(my main is ADC right now,was TOP in silver) and I was very happy with how I played, of course there were games where I got beaten because of my fault in lane but it was just 3-4 games,compared to my 12-13 games loss. When I play ADC, either jungle,top or mid feeds and flames,my jungler is refusing to gank because he got mad on some other lane,if he ganks he gives a kill to enemy adc(also says I want to loose this),I got ganked under turret by their jungler who has 5/0 and 2000hp at 10 min,top starts to be toxic and flames that he hopes we all die and mid says "Open mid". If I play mid, I win my lane most of the time,sometimes even if jungler never ganks me,but then all other lanes start to feed.If I see that someone has trouble in their lane, I go try to help them and ping them to engage,but they simply don't respond or they just pushed too far. If I play jungle, situation is mostly the same as mid. I am also positive every single game,I never flame or call somebody a noob, I ping ss 98% of the games I play, never go for the risky kills,focus objectives etc. I know there are a lot of things I have to improve but none of those things affected my advance in gold. Thanks for your tips in advance.
You need to tighten up your game.