Think and Grow Rich - Napoleon Hill
I am not yet done reading the book but it is by far the most in-depth mentally explorative book I’ve read about mentality. More to come once I finish the book.
Here are a few of the exercises from the book I created in a google doc for you.
https://docs.google.com/document/d/16M_tzZRifkjF5XHzVGlzckIy9KirjlJmog7tFr3H11M/edit?usp=sharing