self confidence

What is the single most important aspect of self improvement? I would have a hard time
coming up with any more important aspect than having self confidence. If you don't have that self confidence it is very hard to really believe you can improve yourself in any other way. It
is vital to have that confidence that you can succeed and change yourself.

Here is a self hypnosis tape that focuses on self confidence:
http://www.hypnosisdownloads.com/downloads/self_improvement/confidence_building.html?970

For many this should be the first step.