I know a couple of people who are like that. I was like that once. I was in scouts when I was younger and we have a pretty serious scout program in my country. We learned a lot about geometry, maps, azimuths, angles etc. but not in the way it presented in schools. It was fun to see different approaches to the same thing :) You were lucky to have your father to help you. Knowledge really does take various forms.
Enjoy your weekend 💚