My ranked games are cursed. PLEASE READ

I just lost three ranked games in a row and got demoted to silver 5, so I decided to create this discussion.

1. All the ranked games I played by myself resulted in solid defeats. My team never stood a chance even though I carry almost all the games. The thing is that i'm always the most skilled player in the team, so I never expected to get carried in ranked games. I mean, if 1 or 2 teammates feed, we still have a chance to win, but every time the games starts, all of the players in my team, except me, are in feeding frenzies, top 0-4-1, mid 1-7-3, duel bot, 1-4-2.... every game.

As a jungler, I always make successful ganks and I know how to give the kill to the laners and control the dragon, but they just keep feeding(unintentionally) until we surrender at around 20 to 30 minutes. I also play mid and always kill my opponent a few times and gank other lanes, but as I win my lane, I see my team die one by one at the top right corner and realize that I'm going to face defeat again.

I played op champions and the ones that work well with my team. I learned from internet and my diamond friends, but no matter how much I try, I can never win a single game without the support of my smurfing friends. I know when to do dragon and when to push, I can assist my team immediately when they need help, and I never blame them for doing bad, I carry, I prey to Jesus, but It's like a curse, I'm forbidden to win.

Help me please my fellow summoners.