Here is a full tutorial on how to create, delete, assign, and manage various roles in your Discord servers. Make sure you have a server with administrator rights.

Here's how you can keep your Discord server running just fine with some permissions, restricting what people can access and perform on a category, channel or server-wide basis.

You can make someone an admin on a Discord server you own to give them more permissions than a standard user.

You can make a Discord server by selecting the plus sign in the app's sidebar, and proceed to invite people, create channels, and more.