Sorry I don't understand your question. What do you need from 2018? Do you need the 2018 AGI to efile 2019?
You need your 2018 AGI to efile 2019. The AGI is on 2018 1040 line 7.
https://ttlc.intuit.com/community/agi/help/how-do-i-find-last-year-s-agi/01/25947
Or see the screen shot by critter on this one,
https://ttlc.intuit.com/community/taxes/discussion/re-i-m-order-to-complete-my-taxes-it-is-asking-me...
