If a fighter doesn't believe he's the best at what he does then he should not step into the ring or an octagon, it is a dangerous environment and unless one has the utmost confidence in what they do then I would recommend doing something else
And by professing hatred for a confident young man says nothing said man but it says a lot about yourself as an individual
Therefore I would say to you, rather than looking for others to seek self reflection, perhaps you would find it much more beneficial to seek such reflection from yourself, I am sure you would become happier for it.