One thing about flash is that the more you experiment, the more you’ll learn. So try to do as many tutorials as you can, do some reading as well if you get the chance and if you get stuck, just come to this forum and post your questions.
Before you post a question, do a search first to see if the question has been asked before.
I started working with flash about 8 months ago and this forum has contributed to a lot of the things I know now.