Can you explain more?  Do you want a book like Atomic Habits to help you build better habits?

I didn't know about that book. Thank you so much for your kind suggestion!

You're going to want the book Peak by Anders Ericcson.

I think Ultralearning could be one. The First 20 Hours is another.

I'd like to learn a lot of new and different subjects like investing, cybersecurity, public speaking, knowledge management, etc.

I want steps to practice the skills that are required to master these topics. Are there any books that give you the efficient process to do the deliberate practice required?

Please suggest me a book that is about "deliberate practice".