I have started a MySQL RDS instance under free tier scheme can you please double check if its ok and I wont be charged for it.

If you're within the first twelve months of opening your AWS account and the RDS instance meets the following conditions it will be covered under the free tier:

• You're using an instance type of db.t2.micro, db.t3.micro, or db.t4g.micro. (update: the instance must be single-AZ)
• The allocated storage is 20GB general SSD storage

You'll get 750 hours of usage per month under free tier until you reach the end of your initial 12 months.

More info is at https://aws.amazon.com/rds/free/

Please review the latest AWS Free Tier with Amazon RDS https://aws.amazon.com/rds/free/.

You can also help avoid unnecessary charges when using the Free Tier by following these best practices as listed in this knowledge article. https://repost.aws/knowledge-center/free-tier-charges