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.

How to add roles to your Discord server As the owner or admin of a Discord server, you have the power to manage the roles of everyone who participates in it.

Learn how to add BOTS to Discord server. If you are a Discord server administrator, then you'll need a bot to moderate your channel.