I can't win a single game, not even any competition please help

I've been playing ranked for the last couple hours and I can't win a single game. I am winning 1 every 7 games and its really bad. No matter what lane I play (mid or adc) the same thing happens every game. Top and mid both die 5 times pre ten minutes (very often at the 5 minute mark too) I get about 6 kills in my lane and have a lot of cs, but we are losing the game SO HARD. It doesn't matter. A couple days ago it started when I was playing adc bot lane we kept losing cause top and mid couldn't play the game. So for the past day and half i've been playing lethality Jinx mid.

One example of this is the game I just played. I just won lane against a zed and went 6/0 with the most cs in the game at the time. While bot and top died over and over again it was stupid. Fiora died 5 times to olaf by the 10 minute mark and bot lane had a total of 5 death by the 5 minute mark. All I did was prolong the game because nobody else did any damage at all besides me so I would kill like 2 people then 3 of the enemy would push a tower while I was the only one actually alive.

Every single game I have been playing no matter what I do has been going this way. I know "I am the common factor in every single one of my games" statistics blah blah. But another common factor that is causing us to lose is the fact that the score is 12-2 in the enemies favor by the 10 minute mark because of the lane I am not present in not knowing how to play and these hypocrites criticize me in the beginning of the match and by the end of the game apologize to me.

My build of on is not the problem because this was still happening when I just went regular adc bot lane and i'm doing a lot for the team. We still get an adc anyway.

I was silver 1 100 lp now im silver 3 43 lp

If you look at my match history and click on a game where it appears I didn't do so well playing click on the game and look at everyone else's deaths compared to mine. It's all because they feed so hard early.