I recently took and passed the exam for Amazon Web Services Certified Cloud Practitioner (CLF-C01) Exam Details
I just want to give some small tips that will guide you on the studying. Focus on learning the following concepts and understanding all terms:

• 6 Pillars of the AWS Well-Architected Framework
  -Four Princapals : Agility, Elasticity, Security,Flexibility
  
• Agility vs Elasticity
  -Elastic Compute Cloud (EC2)
  -Elastic Block Store
  -Elastic File System
  -Simple Cloud Storage (S3)
  -All the Different Database offerings (RDS, DynamoDB, ElastiCache,etc)
  

Amazon has sooo many freaking serivces names they can throw at you, its hard to rememeber them all. Focus on the core services Also remember its a marketing level cert. just know the terms

AWS Certified Cloud Practitioner 2022 FULL COURSE for Beginners (Youtube)

AWS Certified Cloud Practitioner Certification Course (CLF-C01) by FreeCodeCamp.org (Youtube)