And just to prove that "Sports are 80 percent mental" check out the blog by the same name: http://blog.80percentmental.com/
(some people say its 90%, but the difference isn't worth arguing about)
There are no billiards related posts there, yet, but I'm thinking that the mental part of most sports should be relatively similar.
I knew I was going to like this blog when I read agreement with my previous posts that it take 10 years of practice for a novice to become an expert.
I always like it when people agree with me!