How can I be a better player

Farm, gank, ward, don't die. Just play more. You'll get better. Also, it depends on the skill of the enemy. League of legends is mostly strategy and skill, but there is also a luck element to it. That's what makes it fun. :D

My best advice comes in the form of a link to a video series. Watch these videos, even if you think they are below your abilities as a player. Unless you're already a pro I guarantee you will learn something.

http://www.youtube.com/user/unswlolsoc/videos

Many players know that feeling of not being able to "carry their team". It's just part of playing a team game. You win some, you lose some.

Perhaps helping out with wards (unless you already do so) would help, or you could give constructive criticism after you see a mistake. That's always tricky though, because I sometimes find that no matter how nicely I say "Please don't engage 1v3" etc, someone gets upset.

Also, I try to constantly be map aware, even for other lanes. If I see the jungler, I let my team know by pinging. I also call other lanes MIAs if they fail to do so.

You'll get better, you just have to be lucky enough to get a team that completely matches your skill level and laning level.

Okay, let's get something straight. Only very rarely will you be fed enough to truly carry the team by yourself. You have to realize that even though you're fed, you're only one person and you can only do so much. God forbid that the team focuses you like they're supposed to and kill you before you can do any damage. Then it's just them mopping up the rest of your team.

Let me start with an anecdote: I have a friend who is a fantastic adc. HOnestly plat level, though he's not quite there yet. He very rarely loses a lane, and if he does he makes a nice comeback mid to late game.

When he kills his turret bot lane, he will help other lanes. But he tries not to take farm, and he tries not to take kills from the mid laner IF THE MID LANER IS BEHIND.

Carrying, in many cases, merely means being fed enough to help your team to catch up to your level of damage. Giving kills to your teammates, allowing them to take a lot of farm etc etc is how you do it. Basically, if you're truly carrying, your main concern should be postponing the game until your team can reach late game when things are much more even and every person has many items.

At this point, you want to also stay focused and kill the enemy damage. In team fights, your main concern should be either peeling for your damage, or eliminating the enemy damage. That means focusing the adc, apc, or top laner. Just whoever is the biggest threat to your team. If you're fed sufficiently, you should have no difficulty in accomplishing this.

Either way I hope this helped, good luck!

It seems to me that practice is the best remedy for creating growth. It's putting yourself in the shoes of the enemy and learning them to the best of your ability. If you know your enemy to the letter half the battle is won. Most of all, don't let yourself get rattled when things are falling apart. Being newer to LOL myself, I've found the best ways to learn and grow are by trying the things that I really suck at and playing them over and over until I understand how it works. It's anticipating the other player too or knowing how to trick them into playing the game your way. That said - I wish I knew how to tell you to do that. I'm honestly not even that good at it, but I know people who can reason through it and predict where players will go and when they will run away or do something totally different. I suppose though my favorite quote that I use to remind myself that I can ALWAYS improve is "Know thy enemy, Know thy self". I hope this helps, it's just rantings from a relatively noobish support player. :) Good Luck!