For people stuck in bronze
Thanks to the great team mates along the way, it was a fun experience (after bronze 4). So after finally getting to silver (roughly 100 games), I want to reflect on it for the people who say it isn't possible unless you are a diamond smurf.
So never really playing ranked, I decided a while back to do my provisional because I wanted to keep challenging myself in the game... winning 7 games - losing 3... and being placed into bronze 4. I tell you what, if there is a hell, it must be below that place because... whew, it was bad. At first I climbed very slowly, getting used to people losing their lanes/chasing... ad having to try and turn it around. I took a break at one point, because I "used" to think that my team was the problem every single game I lost. After coming back to play league, I had let all my desperation to climb asap go... and realized many things:
Every death you give up, was your fault in some way. You relied on a player to do something and they weren't ready (or willing), you underestimated your opponent, or didn't bother to check the map if people might be nearby. EVERY death is your fault somehow (except when your team hits a monster when you are low health and it kills you... buncha meanies >:[ ). The quicker you realize this, the faster you can analyze the mistake and attempt to not repeat it.
For every winning team, there is a losing team. Sometimes people are not bad, it's just that their opponent is better. What can they do? well whatever they can until either they get a lead, get help, or team fights start. The more you help people rather than flame them, the better your team can come together when its mid game crunch time.
If you are thirsty, go get a cup of your favorite beverage before playing. Too many times I have seen big leads just tossed aside by people trying to chase an Uydr for 4 minutes while zed split pushes top and takes an inhib. Learn to see what is worthwhile, and what is just bloodthirst for another kill... you will get a lot farther taking towers when the enemy is weak, than to hunt down someone and get nothing (sometimes, they even come to you in a desperate attempt to save the tower... and die anyway).
Support the people carrying your team, and try to keep them from making bad decisions. See that Vayne with 20 kills? maybe its Tryn? keep them alive. If they are single handedly wrecking the enemy team, then at some point they will start to get focused. If they go down, sometimes your team doesnt have anything to fall back on. Do what it takes to keep them up: buffs, heals, item activates, peel whatever. If possible, keep an eye on the map for them... see the enemy team going towards him as he is killing someone? warn them.
Last but not least of the big things that helped me get out of bronze... stop spending your time running around. You know who you are, mid game hits and you are going up and down the map like the first elevator in Walmart. Stop it, you need the farm and exp to keep yourself in the game. If the enemy team is pushing, that means they are still getting gold and exp as they are killing the minions..... while you are just running to stop them and maybe getting a few before you start fighting them. If you win you kinda stay in the game, but if you lose not only are you not getting more exp and gold... but you just gave them a bunch more that they already had from pushing. Learn to team fight to take people out that push too far, and make sure you farm in between defending or roaming or you will fall behind.
TL:DR I got out of bronze on my own, mainly as a support turning around several games that my team had already given up on. To all you nay sayers out there, read the post and you might see some of the things I had to learn the hard way. I hope this helps some of you who are having a hard time in bronze. :)