Even though I edited it to state I didn't contribute to an IRA/Roth, it shows later a total contribution of $2800. How can I correct and take it back to zero?

Please go back to the IRA contribution interview:

1. Click on "Search" on the top right and type “IRA contributions” 
2. Click on “Jump to IRA contributions"
3. Deselect the IRA and click "Continue"
4. Confirm you want to delete the IRA contribution.