Higher testosterone itself doesn't mean anything. Like "being more creative" or "feeling better" or not "shying away from stuff" ...
Can you copy and paste an article that shows the correlation you are
actually referring to?
Ever heard of Magritte? It's actually fun:
http://en.wikipedia.org/wiki/The_Treachery_of_Images
Whatever you are feeling is probably the placebo effect. I recently stopped drinking diet coke and it made me feel good. Because I proved to myself that I can change my behavior.
Whatever you are doing is technically called "Cognitive Behavioral Therapy" aka CBT.
Here:
http://en.wikipedia.org/wiki/Cognitive_behavioral_therapy
It is indeed one of the most effective therapy methods and well-respected in psychiatry.
You can exercise self-control as much as you want; it's probably good for you -- just don't pretend that you become scientific and rational when you c/p lines from papers you don't understand.