I would like to point out the fact that you are not just learning how to fly an airplane, you are also learning how to operate something by remote control. The later is not near as easy as you think. If you don't believe this, try a radio control car and see if you can maneuver it through a course without running into something. Shave or apply makeup using a video camera and a tv monitor instead of a mirror and you will get an idea of just how unnatural RC is to a newbie.

If you already have a lot of RC practice using cars or boats, you stand a much better chance of being able to fly an airplane without an instructor but you still stand a good chance of rolling it inverted because you treated the ailerons like a steering wheel and then diving it into the ground because you commanded the elevator to make the plane go "up" while the plane was flying inverted.