Thanks for the replies. I have taken the course but it was on a sports bike. the cruiser feels different but i chose it because its more comfortable to ride.
Welcome aboard! I took the course this past Spring. Since it was the Harley Rider Edge version I learned on the Buell Blast, so going home and sitting on my 30 year old GS450 was certainly different, especially how it handled.
What I did was ride around my neighborhood in ever widening circles. I planned routes that wouldn't have much traffic. After a week or so I tried the highway, but only from one entrance to the next exit, a couple miles.
Once I got a little more comfortable I created little destination goals, like riding to a park or to visit my parents a couple towns over. After setting the goal I would then think about what skills I would need to be able to complete it, and worked on those.
The ride to my parents was a good one because it made me work on riding in traffic with lots of lights, because I needed to cross downtown Portland to get there. It also meant that I needed to think about taking off on inclines. Though there was no way to prepare for driving across a large bridge with open grates, thats an eerie feeling you feel entirely disconnected from the road surface.
Anyhow, like was mentioned, do what you feel comfortable with.
Also, where are you from?