RE: When do you know you're ready to move on?
flymeaway; It sounds like your right there you just need a little confidence. And that is where the instructor will help.
Yes a good instructor can help all the way down to ground zero and after.
If you go it alone keep shooting the runway then when everything is right just chop the throttle and land. The key is make sure everthing is right. There is no rush make sure you have alot of fuel. If you can line up on the field at 10' high you just cut the throttle and keep the wings level. Next thing you know your on the ground.
Good luck and keep us informed.
Terry