Stop the post about personal stats...
This is a team game, the fact that you won your solo lane with a end match KDA of 17/2/5 doesn't mean the rest of your team sucks. It would actually mean you suck because even though you had the advantage, you lacked the game knowledge to utilize it.
Being that these post are made by low elo players, I'd like to inform you at high elo, mechanics and skill are less relevant. Map awareness, lane rotation, jungling path and team synergy will triumph every time. If you focus only on winning your lane, you'll never make it past low plat and you'll be worse off.
In 1v1 you can take a lane bully like Illaoi, Pantheon, Riven and stomp all day. That same strategy in 5v5 on summoner's rift will get you destroyed by jungler, roaming mid or a roaming support. A high elo laner will fall back to turret and recall before giving you a kill or being too low health to help a ganker.
1v1 champions are normally gold players, because that's as far as skills/mechanics alone will get you. These is a team game, get a team player mentality, add people you like after the match that main champions that compliment your main or fit well into multiple compositions. That's when you'll start to climb the ranks.
