If it shows you have printed and mailed your return, the program thinks you have filed, so to get around this and get back into your return, please follow the instructions below:
- In TurboTax Online, sign into your account.
- Select Tax Home in the left menu.
- Scroll down to Your tax returns & documents.
- Select 2018, and then select Add a State (you're not actually adding a state, this just gets you into the right menu).
If you need further assistance please feel free to reply back to this post.