What To Do

The best place to start is with the first page of the Greenfoot tutorials. It has downloadable project that you can follow along the tutorials with and experiment with.

I have noticed that you have not uploaded any scenarios onto this site yet. However, if you have watched and understand all 33 JOC videos, you should be well on your way. Maybe you should start by creating some test scenarios that utilize what you have learned (for testing what you know). I have a folder in my scenarios folder called 'tests' for such projects with many different "tries" at doing different things. In fact, most of my uploaded projects started from work in that folder.