Play with No Stress.

If you want to play a Solo Queue, alone, and play better. Here is a super simple tutorial.

1º - Open League of Legends
2º - Search a game
3º - Open this website: RainyMood (if you want, you can pause the "fireplace" video, and only listen the rain.)
4º - When the game start, mute all the enemies.
5º - Good Game.

This is a simple tutorial, I use this to keep calm and be a good player.

P.S: Sorry my bad English, this is not my main language.