That video is from 12 years ago. Most trainer aircraft today are electric powered and have a receiver with a built-in gyro that can prevent a student from getting the plane upside down. You can buy a ready-to-fly trainer for at little as $150. If you go to an Academy of Model Aeronautics (AMA) club, you can get 90 days of instruction and liability insurance coverage for free. Since a model aircraft flies in the airspace that’s regulated by the FAA, there are rules and regulations that you need to be aware of. Get a club instructor to teach you the right way.