Efiling is now closed. So you don't need the AGI anymore. You have to print and mail returns.
Be sure to attach copies of your W2s and any 1099s that have withholding on them. You have to mail federal and state in separate envelopes because they go to different places. Get a tracking number from the post office when you mail them for proof of filing.
Will amending the prior years affect 2018? Or did you enter the correct amounts into 2018? If you file 2018 then you may need to amend it if you amend 2017 later and it affects 2018. Or you can wait to file 2018 until you get the changes from 2017.
