I accidentally hit Start Over while doing something, so am back at beginning, and need to know if I should import info from last year again?

I still see my income and balance owing at the top left. I checked some TurboTax queries, and fortunately I see now that since I did not hit 'clear and start over', my entered information should still be there, thank goodness. But I am back at the beginning and it is asking me, as before, if I want to enter information from last year's return. I entered this before, so can I just hit NO, or will NO delete such information?I prefer not to hit YES since I think I changed some of the information entered from last year.