A lot of WP courses leave out some very important aspects of the WP Editor. Even though I’m just getting started I wanted to spend a little time going over a part of WordPress that you’ll need to get comfortable with.
Word To The Wise Which Means You
Some tine soon (Summer of 2018?) WordPress will introduce its new page editor k/a Gutenberg. I have videos on it too or read "WordPress In 2018 Is Getting A New Page Editor And It’s Called Gutenberg."