I didn't even realize there were deadlines this late.
I was up close to the last deadline, but forced myself to finish before a research conference, so I didn't have to finish them in the hotel there.
And deadlines back in Dec. or Jan 1/2 I submitted the day of or the day before, simply because I could always find something to tweak in my SoP.
Good luck with yours, just get them done! You'll feel much better.