Making others tilt is sort of childish in my opinion. However, I also am in bronze but I find it very easy to carry from the jungle with
He has fantastic sustain in the jungle with his w negating the need to ever back. If you go golemns, red, wolves, blue, gromp, then the rift scuttler (speaking in terms of red side, switch for blue side) then you can easily dragon at level 4 assuming you have 2 points in your w. His ganks are average to really good depending on how much attention the opponents were paying. You can solo dragon every time it comes up. I recommend building him a bit like a bruiser. My build usually goes in this order:
Item 5 and 6 are sometimes switched depending on the team comp. But it is amazing how easily you can jump in to fight people. Plus the devourer stacks really boost your damage more than you can imagine. I just finished with a match where I fought
in a 1v4. Granted I was a little fed and yes I did win but this was also a match where my team was behind.
What that paragraph is basically saying is, do things a bit out of the norm for a bronze player. Do things they wouldn't expect. In addition, no game is ever lost until the nexus is destroyed so instead of berading teammates, offer help or keep their spirits up. Odds are they know they screwed up and will be only feeling and playing worse if you point it out to them.
That being said, I will say this. Some games are beyond your control. I've had games where people came in just to feed and they walked to every lane to feed a kill. You can't do anything about that and you just got to let it go. Can't win those.
As I mentioned with the dragon above, objectives are more important than kills. The more objectives you can secure, the better your team will be. Turrets global gold helps so many people you don't even know how important it is. I've backed and realized I was 100 short to buy and item and then someone destroys a turret and I can then buy. Objectives> kills.
Don't try to go for a full build. If you see and opening and your team has a lead, pressure at all times. Keep lanes pushed. Don't let up. I've finished games before without even building a 4th item. Sometimes only half a 3rd.
TL;DR
Do the unexpected.
Encourage others.
Just Breath.
Objectives>Kills
Finish games quickly.
Just to add on I am currently 12-3 with 
Stats: 97 kills to 74 deaths and 84 assists
Averaging about 2.20 turrets a game with 6.5 kills, 4.9 deaths, and 5.6 assists.
It is possible