The tires did a lot for you but I think your driver mod is where its at. I like how you began asking yourself questions around the 15 minute mark as a way to problem solve through your weak areas and really bring it home.
Yeahhh you’re not ready for the stickies yet. Learn the car with low grip so you can properly handle it with high grip. Grippy tires will mask mistakes that low grip tires will punish you for. If you can learn to be fast on slow tires, you’ll be an absolute menace on fast tires!