If they had YouTube video tutorials back in the day I didn’t know about it. I had to learn reading FAQs & help files plus manuals. WordPress.com & WordPress.org still have whatever you need to learn their software.
But if you’re not much for reading YouTube does indeed have several videos to teach you something WordPress. Also a lot of the theme or plugin creators post video tutorials on their sites. But when it comes to WordPress I still prefer reading. Luckily most post demos & documentation on their sites as well.
I just searched YouTube again & noticed most videos are a year old or older. The “dashboard” & more-so the text editor have changed a bit since then. I don’t want to give you the impression otherwise so I’m not embedding any how to videos here.