I was not good in school. I could never read very fast or very well. I got tested for learning disabilities for dyslexia. Then I got put on Ritalin and Dexedrine. I took those starting in the eighth grade. As soon as they pumped that drug into me it would focus me right in.
TV is easier: it's all planned out for you and the audience is there to see a show and they are all pumped up but when you are in a comedy club you have to be really funny to win them over.
I don't care how pumped up or psyched you are to start a new diet or a new program - that emotion will fade.