A family of Microsoft word processing software products for creating web, email, and print documents.
I feel your pain.
It was the same for me. I had an assignment due on Sunday. What should have taken an hour or so on the third draft took me all day because Word would only give me 5 -10 minutes before crashing. Sometimes, it didn't even save, so I started to screenshot each paragraph.
Try typing into an email or using the Google version of the Word- save it to iCloud.
Monitor - the Mbytes in activity monitor- when it gets too high, save, shut it down, and start again.
I am now using the Apple Word version, and all is good.
Good luck!