Yeah, I'll be honest, I just about put my controller through the screen today. I've exhausted every tip online to not get mad, and while some worked, I still rage like crazy. Help?
Don't play? Or play only for a short time at the time. Don't play multiplayer games, where people can provoke you, don't play games of too great a difficulty and generally try to avoid stuff that will cause you to react with frustration.
For everything else, count to ten, punch the wall, bite your fist, kick your shin or otherwise be aggressive towards your own being so it might learn anger is hurtful.