How do I create another iCloud account

Do you mean an email address alias?

iCloud: Use email aliases in iCloud Mailhttps://support.apple.com/kb/PH2622?locale=en_US

If you mean an account in general, you get one account per Apple ID. Realize it is not easy to use two Apple IDs except in isolation from each other.

Create an Apple ID - https://support.apple.com/HT204316

Am very happy to have a iCloud account

Good

Am very happy