To launch the instance, you must specify a key pair. If you are using an existing key pair, ensure you have access to the private key file; otherwise, generate a new key pair and download it from the AWS console. The private key file is required to connect to the instance using SSH.

The new instance should be available after a few minutes. Once the instance is available, you can verify the status using the AWS console. Connect to it through SSH, enter:

ssh -i "<private key file>.pem" ec2-user@ec2-18-222-75-189.us-east-2.compute.amazonaws.com

Then, substitute the appropriate path and filename for your private key file.