Do you ever watch a tutorial and feel dumber afterwards? Here you are just trying to learn something new and improve your skills and then you do a tutorial that just leaves you shaking your head. I feel just like that. Frequently.
Pro Tip: If you are filming a tutorial, don’t assume your viewers know anything. Hold their hand through the material. You (and the viewer) will be better off for it. Here’s a hilarious take on that phenomenon:
The Illiterate iterator 