I need to correct information before filing THIS return. How do I go back to the worksheet?

[ChrisJ]

Are you referring to the Personal Info Worksheet? If not, specify in your reply. Otherwise:

1. Sign in - Continue your/take me to my return
2. Select Personal Info (top left)
3. You'll see your personal details in this summary, as well as those of any other person on your return. You can edit the worksheet details here.