Passing along something to try when you've got a deadline, especially for writing.
First, mentally move your work deadline back 48 hours. Complete the final draft and "put it in the freezer" by putting it aside completely.
Then, 24 hours later (note that this should also be 24 hours before you'd normally be completing it) sit down with it again and read it as if seeing it for the first time. Missing words that your spell check program didn't catch? Punctuation? Proper formatting? And so on.
All good?