Ancient ipod touch, can't log into icloud
My ipod is 10 years old. I'm getting rid of my pc that my itunes library is stored on.
I also changed email address so updated my apple ID which was fine.
However this didn't sync to icloud and I can no longer access I cloud.
It won't open with the old apple ID as that no longer exists but won't open with me apple ID either.
Apple have been utterly useless and cannot help.
How can I access my icloud please?
Windows, Windows 10