What do I do? It wants me to mail my tax form but I need to change info. If I amend return there won't have been one already submitted to amend.

Here are some steps to follow so you can get back into your return to make changes: Please only do this if you have not filed or mailed your returns: 

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