Saving drafts

I somehow deleted the words ‘remove to trash’ and PUBLISH that were halfway down the right-hand side of the page when I was in edit mode. Now the word PUBLISH appears at the top right of the page. But I can’t find my most recent post. Instead I get a message that says ‘removed’ in red on one side and ‘added’ in green on the other, and ‘restore this version’ in blue above. But which version? Neither is the most current. It’s late – I’m tired – and terrified that I’m going to lose a whole bunch of work. Can anyone suggest a way around this (other than buying an Underwood?)