Does Gingko Biloba Count?

As a substance, I mean? Because if so, I’m going to wind up with a major substance abuse problem I’ll develop in the next week.
Knowing you’re reviewing the final drafts for the copyeditor is nerve-wracking. The feeling that I will not be able to make any changes at a later date is enough to shut my brain down entirely. But at the same time, the book is already in good shape, it feels done, and only this nit-picky stuff needs doing. Still, it burns your eyeballs out.
Betty may regret ever having married a writer after this week.