Great Video about helping yourself not rage.
https://www.youtube.com/watch?v=WHpF9byN5FE
Mylixia, the life coach of team dignitas, is a very well-spoken and well-read man who has devoted his life to streaming(twitch.tv/mylixia) and helping out and driving a community driven broadcast. He was a featured streamer on league a few months ago(although he doesn't stream much league anymore for personal reasons). I highly recommend this video if you struggle or if you know someone who is a friend that struggles with raging. @RiotLyte would probably like this.