Can I still add the educational expenses I spent in the past years and forgot to add to my tax returns to this year's tax return?

I graduated in 2015, but still owed around $12k to school for tuition. My school did not issue a 1098T for me in years 2016 and 2017 and I had paid a total of $3600 in these 2 years and did not mention it in my tax returns. Can I use my bank statements to get a tax return for these years?