iCloud email alias setup paradox
I am having a problem with iCloud Mail. In my iPhone Settings, it says I have an iCloud email address already, which appears to be accurate - I can send and receive from it in the Mail app on my phone. However, I want to create an alias email so I can use my name and not my handle. To do this I have to log into iCloud in Safari and click on Mail. I don’t have a Mail option on this page, and according to the support file, this means I DON’T have an iCloud email and I have to create one - and the only way to do this is to go through Settings on my iPhone. Which I can’t do because I already have an iCloud email set up. What am I doing wrong?
iPhone 6s Plus, iOS 14