Nice Spam
First of all, start out by learning ActionScript. I suggest 3.0 because it's much more open and relatable, so long as you're a Visual-Linear learner you won't have any problems.
Second, practice drawing. Start with stick figures, work your way up to however far you want to go before sharing it with the world.
Third, and last, find someone with a good ear for music, and have them learn how to make their own songs.
Combine that all together and you've got a REAL flash, and not just a joke, thanks for reading.