So ... Before anything else, you need to understand one thing: depending on how you interact with the Wordpress application, you'll be granted different user roles and these roles will define your user capabilities.

For more information about this basic topic, please see this:

https://my.wealthyaffiliate.com/training/how-to-manage-your-...

With that having said, let's see the magic ...

We are going to use a handy, tiny 180KB plugin called User Blocker.

Here it is:

https://wordpress.org/plugins/user-blocker/

Upon activation, the plugin will add a new "User Blocker" to your Wordpress admin menu area. Which will take you to a settings page divided into three tabs:

Now let's move to the next lesson to see those settings ...