I've been shooting now for over 45 years and way back when, there was nothing to learn from. I mean nothing. I found a copy of The Archer's Bible by Fred Bear and looked at the pictures to figure out how they were shooting. Talk about being self taught! Haha.
Back then it wasn't called "traditional archery" it was just called archery.
There, of course, was no internet, no videos, no television shows, and of course, it wasn't covered in any of the hunting magazines which were present. That's one of the reasons I started up my YouTube channel with all the teaching videos, was to help people get started and shorten their learning curve. Now people say they are self-taught, but they've watched all the videos, etc. They have no idea how difficult it use to be. lol