Amend 2018 to add 1098-T Tuition and enrollment expenses

Keep trying to amend my 2018 return.  When I get to the section to Gather XYZ's Additional Education Expenses it says We'll ask about: Books, Classroom supplies, Lab Equipment. After I hit Continue it asks about "Pay for Books or Materials to Attend School?".  Below that is has a section to Enter XYZ's Education Expenses:  The first option is Tuition and enrollment fees.  It shows $0. I believe you can claim up to $4000 in this section (as I did for 2019). The section is hyperlinked but when I click is the help box to the right opens and it says "What are tuition and enrollment fees? The it says "This amount, which you entered earlier, includes the amount of tuition.........".  I can't find where I entered that earlier to amend the amount.  It just keeps taking me in circles back to this same section.  I can not find where to enter the Form 1098-T information.