Links to the authors, classes, and books mentioned. I am not sponsored nor do I receive anything for them. I just appreciate their work. Cheers.

https://www.thirtythousanddays.org/

https://www.thirtythousanddays.org/shop/

The second link has the courses listed, Gregg's books, as well as The War of Art by Steven Pressfield.

https://stevenpressfield.com/books/