Re: Can't finish writing a book

It's a known bug. You don't have to write it in one session. You just can't leave the lot in between as it's the loading screen that resets the progress.

You can add your voice here: http://answers.ea.com/t5/The-Sims-4-Bug-Reports/Resume-Writing-will-sometimes-starts-over/td-p/4031736/

I don't even think there's a mod that solves the issue.