going from "I can't do it." to "I can do this." to "I am doing this. " to "I can do hard things." to "I'll make the hard look easy." to "I got this." to "I can do great things." to "Here, I'll show you how so you can do it too."
Yes that’s one type of growth, building self-confidence through trial and error and practice till some skill is mastered. Sharing what you learn is the highest goal in growth.