Accessibility – dynamic text

I have a form with some prefilled data. The footer is sticky with a "continue" button that takes you to the next page. All the fields of this 3 page form are required so the continue button was disabled until all the info was filled out.

My team put this infront of users and they didn't like that there wasn't an indication of what was needed to continue.

After alot of thought I came up with that the continue button could be dynamic - saying the next field that needed to be completed.

For example:

The user needs to fill in the street address and city as two input boxes.

While fields are empty the continue button says "Enter your address". On input of the street address the button can change to "Enter the city" etc.

For the entire form.

With aria labeling I am hoping that the screen reader can watch the input and signal the user of the dynamic text after they finish the field they are on. However is this needed? Since a screen reader most likely will tab to the next field on the keyboard this information is not nessesary unless they accidentally skip something and then upon getting to the end of the form tabbing to the continue button -where it can read to them that they have a question missing and can press enter on the button to imediately focus the field they need.

Looking for any advice. I don't see this type of button convention anywhere - but don't know if that's because it's bad or because no one wants to try it.