I read about the book description and don't understand the connection with the question. Can you please describe a little description or connection with the question?
Not the OP but: it’s all about learning to build habits in order to break this inconsistent “flow” of motivation.
> While you are in busy, you want to learn or create something new. But, not when you have free time. It's always happened to me.
The book is almost entirely about this feeling it calls Resistance.