Apple ID confusing

I opened my Apple account initially many years with an iCloud email address that is still current, but as I navigated the registration procedures, I was instructed that I needed 2 email addresses attached to the account which is where the confusion starts.(I used my main gmail address)

I am now thinking that these 2 email addresses have 2 entirely seperate iCloud accounts.

i have issues with not being able to activate WiFi calling on other devices as the iCloud & iTunes accounts are using different sign on credentials or something like that,& I have tried to rectify this situation only to get a notification that I can’t sign out of the account until I change countries.

So I have tried repeatedly to make what would seem to be on the surface, a very simple task.

But as with most things “Apple”, every time the web page reloads, I am thrown into a loop where I am no closer to changing my country and always permanently on the American site.

Anyone able to explain why this might be occurring at all?

thanks in advance.