Yes, if you had any additional education expenses to include and plan to file for the Education Credit, you will need to file an Amended return using Form 1040X to include it to the rest of the return you already e-filed.
IRS may send you a letter of inquiry if you did not include it in your return and should have because they also get a copy of it.
Wait until you get the refund for the return that was already accepted to file the Amended return. You can use TurboTax software to do the amended return. You will just open the return that you already filed and include the 1098-T and additional education expenses and the credit if desired, and do an amended return using Form 1040X.
