Really messed up some Journal Entries -

SUGGESTED

I create a Saved file at the end of each month.      I really messed up some journal entries this month September and I would like to just go back to my previous month's Saved file and start again.   Is this possible?     If I click on the previous month's .SAI file, it does open up SAGE 50 at the point I was at the end of August.      Can I do that and just continue from there and resave when I am done?     I am so scared to do this in case it is not the correct way.     Thank you.