Once you've found yourself a place to work with Flash, either here in the DMS or at home on your brand new copy of Flash, you need to learn how to use it.
Before you can animate or make games, you need to learn how to draw in Flash. Games and animation require characters and backgrounds.
As it happens there's an excellent hour-long tutorial on just this subject.
Most of the tutorials on CartoonSmart cost money, but not this most basic one on drawing in Flash. Watch it and you'll be ready to roll for the next step in no time.