You’ll need to use a “Get Variable” module immediately after the Iterator module, to get the updated variable value at the beginning of each iteration “loop”.
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Did you know, the concepts of about 70% of questions asked on this forum are already covered in the Make Academy. Investing some effort into it will save you lots of time and frustration using Make later!