Okay, let me run through the qualifications then.
I paid education expenses in 2016 and was enrolled as a full time student until July 2016.
Currently, my modified adjusted gross income is less then $90,000.
My school appears under the link you provided under the US Federal Student Aid Code List.
I have not used the American Opportunity Tax Credit in the past and I completely my fourth year of college in July 2016.
