I need to clear all info imported on my federal return and stsrt over how do I do that

Please follow the steps below to delete your W-2:

1. Open your return.
   (To do this, sign in to TurboTax and click the Take me to my return button.)
2. Search for W-2 (upper- or lower-case, with or without the dash) using the search or help feature in the upper right corner and then click the "Jump to" link in the search results.
3. This brings you to the Review your W-2 info screen. Click the “trashcan” icon (delete) next to the unwanted W-2 and then answer Yes on the following screen.

https://ttlc.intuit.com/replies/4233656

Or you can erase your return and start from scratch as long as you haven't submitted payment, deducted the TurboTax fee from your refund, or registered. Please follow the steps below in the TurboTax FAQ: 

https://ttlc.intuit.com/replies/4248526