Problem going back from efiling stage

[kibtt]

I am a US  citizen residing abroad . I'm preparing  my  return using  Deluxe. I reached the efiling stage & had a problem filing  . In the interim  , prior to filing  , I got advice that  can save me paying unnecessary taxes .

How do I go  back to correct my return ? 

[Stinkerbellkity]

What do you need to correct

[kibtt]

I incorrectly  filled in  as if I had  a business, and was chared the self  employment tax.