I made the following hands-on guide for getting more familiar with CloudFormation, the guide requires you to work with, manipulate and modify CloudFormation scripts in many ways to make sure you get used to working with them.
Devs/Architects hopefully no longer need to be afraid of the very verbose CloudFormation files 😁.
I hope this is useful for you to start getting into CloudFormation. Is there anything else you would like to learn about? I'm thinking to write a guide regarding API Gateway next.