I don’t know how to use this. Can u send how to open a new apple id

Your Apple ID is the personal account you use with all Apple products and services. It includes the email address and password you use to sign in, as well as the contact, payment, and security details that you use with Apple.

You can’t merge multiple Apple ID accounts.

See -> How to create a new Apple ID

How to create a new Apple ID – Apple Support (UK)