Question for business types (Mr. S?)

[Starfish]

My question:
What is my best approach for letting my bosses know that I will not complete this?

For me, some of this would depend on what your relationship with them is like, and what you know about their attitudes towards balance, self-care, health care, and so forth.

And, I wonder if there are any alternatives you could find that would create a win/win for you all? For instance, is there another way you could study the information they want you to have, without doing it through a demanding course and timeline, etc.?