There's a business saying for accomplishing big goals that goes like this: How do you eat an elephant? One bite at a time.
As a vegetarian who happens to think elephants are very cool, the literal image isn't very pleasant for me. Yet, we are, of course, talking about elephants in the figurative sense.
My elephant is my book I am currently revising. It's messy right now, and everything is torn apart and unpleasant. Yes, guts are everywhere! I am well on my way to finishing, however. This is what sustains me.
I will keep going or taking bites (or whatever it is I'm doing).
Oh, and no elephants will be harmed.