Practicing and getting constant feedback is so important (and sadly underrated in school). It still strange to me how we empathise rote learning in school and have the experimentation away from experts (homework).

For example in orbital mechanics it was experimentation that got me to actually understand all the retrograde burns, plane changes and Hohmann transfers, almost exactly like the xkcd comic https://xkcd.com/1356/ (though without the job at NASA part of course)