I really don't get any of those "be more productive", book, video, course and so on. Every single person I know just wastes their time with that. Usualy they work long hours and still don't get much done. But hey, they have Zettelkasten with things the never read. A to do list with stuff they never do. And they go out in the morning at 5 for jogging, while gulping down a liter of coffe or energy drinks which results…
Of course, be mindful of your time, but learn how to use it wisely, rather than optimizing for “productivity” as observed by others.