Turbo Tax thinks you have completed your return and mailed it in. The best way to get back into your return is:
1. Sign into your Turbo Tax account
2. Click on tax home or take me to my return
3. Scroll down till you see Your tax returns
and documents
4. Click on your 2018 return, and then select
add a state (you are not actually adding a state, this just prompts the correct
menu)
5. Navigate to where you need to on the return