Nice to hear that from someone in another form of creative work.I submit that as you are learning and improving, you go through the gap cycle (if you want to call it that) several times. You're "taste" improves faster, at times, than your abilities, and while your abilities are catching up, you can really HATE what you are creating.
As he said, you just have to keep at it.
Edited to add:
Thanks, smncameron, for posting that link.
[This message has been edited by Kathleen Dalton Woodbury (edited May 29, 2008).]