I could give you a kick up the harris, but I don't think this would help.
I think the only cure is just to bite the bullet and get out there. Do you know any body else with a bike - so you can go out with them?
I'm sure some of the .org guys n gals from your area would be more than willing to help you out.
How were you while doing your lessons and test? How about going back and geting a couple hours accompanied riding from them?
Once you get into the swing of things you'll be wondering what you were worried about. Your confidence will grow everytime you get out there. So this weekend I would like to see piccies of you out and about and enjoying your bike.
HTH