When you enter the 1098-T box 2, right under the box 2 entry is an option if the amount doesn't agree or something similar, you should click on that and a subscreen appears and enter the amount of tuition you actually paid in 2017.
In 2018 the box 2 is no longer supposed to be used and only box 1 which is tuition actually paid is supposed to get used although they may agree to give colleges 1 additional year to move to this method.
I hope this was helpful?