Eh, you can skip that (it's not a bad book) and go directly read the Stoics.
[0] https://www.amazon.com/Guide-Good-Life-Ancient-Stoic/dp/1522...
As I've said, the book does re-package some millennia old ideas and adds couple of hundreds usages of the f*ck world -- because it's of highest priority to be witty for some, apparently. Hell, CBT essentially does the same -- but it doesn't feels witty as it should be, right? Witty is of utmost importance after all.
How do you know who downvoted you?