As addicting as it is, desire is the enemy to proper time management. Poor sleeping habits, unhealthy lifestyle choices, and just plain dissatisfaction are all byproducts of a poorly managed life.~ Ryan Holiday from, https://dailystoic.com/5-stoic-lessons-on-time-management/
Time management is the only thing—the only major skill critical for leading a good life… Time management is the only thing which no one ever attempted to teach me explicitly. Everything else was covered to some degree: science, religion, morality, philosophy, work ethic, hygiene, sexuality, language, geography, personal finance, and more, depending on how you want to subdivide all the stuff in my head.
Time management isn’t the most critical thing to know. Language and critical thinking are the top two, because with those two and sufficient time you can bootstrap everything else. However, things would be far better for everyone, if the third item on the list of must-have skills to be Human was a basic grasp of Time Management.
For me, I was trying to fix my sleep when it became obvious that I needed to arrange my day around sleeping. That lead immediately to an entirely new need for time management. “I need to be at work by 8,” is not Time Management (with capitals.) I then took a circuitous route discovering the needs and methods of Time Management.
But where do I wish I had actually started? That’s an excellent question. Right around 18 years old, I wish someone had handed me a copy of this tiny book: How to Live on 24 Hours a Day by A Bennet.