Get your taxes done using TurboTax

Problem is, it was a carryover from last year's return -automatically entered when TT imported from last year.  I no longer rent the property, so my initial reaction when I got to that section was to delete it.  Apparently there was quite a carryover and when I deleted it, it raised my tax due significantly.  Was hoping there was a way to "Undo" my goof.

 

Alternatively, is there an easy way to simply delete the return I goofed on at the beginning of launching TT and just start over anew?  (I seem to remember it being difficult to completely delete a- return in progress from the past)

 

Thanks for any advice!