Scott Manley had taught me how to fly, maneuver, and construct Rockets. He also taught me the basics of planes, but for the most part, I myself learned how to construct it and fly it efficiently on my own. Making good looking planes and replicas are one thing, but making it practical i.e having long range, high maneuverability, correct speed, and reasonable TWR is quite difficult and takes more work than making good rockets imo.