But you are right on point, understanding things is the goal you want to pursuit, not only copying what you see on screen. So if you are jumping on Blender for the first time and you haven’t watched CORE and the Blender Basics, you can also watch them here:
https://cgcookie.com/courses/blender-basics-an-introduction-to-blender-3d-4-5-lts
https://cgcookie.com/p/core