Addendum.

With my writing hours, too, I never give myself a vacation.

Anything I don't do one week, carries over to the next, in terms of missed writing hours, or missed overall project hours.

Like, even when I have a week-and-a-half of vacation that led to 2 weeks of missed writing hours, that means that I carry over in the margin of my schedule the fact that I have to "make up" 12 writing hours now, in addition to the 6 of the present week.

Sometimes, these extra hours that I need to "make up" carry over for several months, till I finally polish them off.