We laugh at his new age posturing about energy pyramids and the anti vax/Adria tour stuff but I seriously think he wouldn’t be half the player without the hard headedness. To do truly great things you must be at least a little bit irrational.
What kind of kid believes he will actually be #1 in the world at anything? What 20 year old faces World #1 Federer who has won 11 of the past 15 slams and has the nerve to dictate rallies and win a TB with the match on the line? There is an inner craziness to Djokovic that crosses the path from the logical, sensible dialogue of most people to the truly absurd. After a point, the most helpful mindset is not the most truthful one, it is the one that convinces you that you will succeed. It was pure defiance to hit the 2010 USO return he did on match point and he’s done it over and over again in his career. Djokovic may say and do unexplainable or dumb things but the irrationality and stubbornness is an integral part of his success, not a detriment.
This is of course why Michael Jordan is known as a bad human being and many top athletes are known as miserable people with family issues. Djokovic is certainly the most psychotic at his core about winning and it’s helped him.