How to deal with nervousness?

[LivingSunshine]

It seems like I have the issue of whenever I play in a tournament or on stream, I get way more nervous and I don't play like I normally would. When I play serious friendlies, I play a lot smarter, but the moment I'm on stream or in a tournament, it seems like all of my mental power is gone. I don't really understand why this happens either...
If I could play how I normally do, I'd have a lot more success, but instead it's like my real play is locked behind bars while I'm on stream or in tournament.

Does anyone have any ways to help prevent this?

 

[Jeeble]

Maybe this video by Omni can help you.

 

[GhostUrsa]

I'd also recommend looking into methods to overcoming Stage Fright, which is pretty much what the nervousness is when looking at it from outside the community. Stage Fright has multiple documented ways to overcome that can be easily looked up via the internet, which will be easier to find scientific documentation on than Tourney nerves or Tourney jitters. Here is a link: http://www.adaa.org/understanding-anxiety/social-anxiety-disorder/treatment/conquering-stage-fright

I bring this up because exposure to what makes you nervous can help you learn, but it doesn't matter if you don't have a healthy mindset to handle it. The exposure approach seems to work once you know what is causing the anxiety (I can't perform right, everyone is better than me, I'm being recorded so they'll know I'm a fraud, etc) and have methods available to combat these while you are exposed. (Meditation, Deep Breathing, Understanding that rivals aren't enemies, etc)