Don’t trust that Youtube. When I got my Fire tablet, I tried following those youtube videos a dozen times, I could never get it to work. Never could get the Play store on there.
It was easy on the Nook I had previously for my wife. The Youtube videos were right on for that one. But the internet let me down on the Fire tablets. I can’t even install the Youtube app on the Fire tablet, since it doesn’t have the Play store.