How can I perform well under pressure?

Answer: Tell yourself thoughts that actually help, rather than hinder.

Thoughts That Win

May 25, 2011 — Back in high school, on the soccer field, poised to take a crucial penalty kick, “I always had a lot of thoughts going on in my head; I think most people do,” says a sport … > full story

How can I perform better under pressure so I don’t become flustered?

Answer: Take five deep breaths beforehand–5 seconds in and 5 seconds out.

Deep, slow breathing will calm you down, allowing your parasympathetic nervous system to take over your more emotional sympathetic nervous system.

Read this article for more details:

I think, therefore I choke