Here’s an interactive tutorial
** Best experienced in Full Screen (click the icon in the top right corner before you begin) **
https://www.iorad.com/player/2289523/How-To-Install-Classic-Editor-Plugin—WordPress–EN-0005-
5 STEPS
1. Open Dashboard and click Add New Plugin
2. Click Search Plugins
3. Type Classic Editor and Press Enter
4. Click Install Now
5. Click Activate