I first read of this word, "akrasia," in another excellent article by James Clear.
He writes, "Akrasia is the state of acting against your better judgment. It is when you do one thing even though you know you should do something else. Loosely translated, you could say that akrasia is procrastination or a lack of self-control. Akrasia is what prevents you from following through on what you set out to do."
He tells the story of how Victor Hugo wrote "The Hunchback of Notre Dame."
And more. He talks about why we procrastinate. Better yet, he talks about strategies (other than the strategy used by Victor Hugo) to get over it.
Check out the whole post.