Do not click on anything that says "amend" if you have not e-filed. Amend is only used to make corrections to a return that has been filed and fully processed. If you need to make changes to the return before you e-file it, you can get back in by clicking "add a state". You do not really have to add a state return, but that trick will get you back in to the software to make changes.
As for starting over---You can clear and start over if you have not registered, paid, or e-filed. If you have done any of those things it is too late to clear it but you can make changes via the interview screens.
CLEAR AND START OVER
https://ttlc.intuit.com/turbotax-support/en-us/help-article/change-service-level/clear-start-turbota...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
