I Need some help.

How in the world do I carry my team in ranked as just one guy?

I play Fiora top almost every game and do really good. (i'm talking most of the time i'm getting quadra's and even penta's) I try my hardest but i feel my team is just trolling. I.E buying a mejai's when you're 0/3 as Ziggs in the mid lane or building stupidly because you just bought a champ and want to go straight into ranked with him.

I'm trying my hardest to get out of bronze 1 and I just cant carry all the time when this stuff happens.

My K.D.A with Fiora is 12.9 - 4.4 - 7.6

I got stuck in bronze when i first started playing ranked when i was pretty bad at the game, and now that i'm better I know i'm better then this. But yet, I can't get out because my team is actually bronze skill level while i'm way better then all of them. I dominate my lane, push towers but it all comes down to if my team will focus the tank by ignoring chat, or go straight for the enemy ADC and mid laner which barely happens.

Just wondering if anybody can lend some help or maybe if my plea for help will reach a riot employee's computer screen and let me re-do my placement matches, both would help out a lot.

I'm tired of being in bronze because my team never looks at chat/listening to chat. I just need some help with this.

Sincerely- SpottedDog