To Clear all the information on your return and start over you would:
If you filed your tax return wrong, you can amend it. However, please pay attention to the following 3 things before amending your return:
To start your amended return, go back into TurboTax, open the return that you already sent in, and on the first page you see, click on the link to amend your return.
Please review the link below on how to amend your federal tax return. Please ensure you select the correct product and follow the instructions included in this link.
How to Amend my federal tax return?