I wrote

If I am of average ability then the things I see people say and do should, on average, be within my capabilities.  But most of the things I see people say and do are far beyond my capabilities.  Therefore I am below average.

I am illustrating a fallacy of course, but it is one that I suspect is very common because it follows immediately from a fallacy that is known to be common.  People don’t take into account selection effects.  The people who get your attention are not average people.  Who they are and what they say and do are subject to selection at many levels.  First of all they were able to get your attention.  Second, they are doing what they are best at which is typically not what you are best at.  Also, they are almost always imitating or echoing somebody else who is even more talented and specialized so as to have gotten their attention.

Its healthy to recognize that you can be the world leader at being you even if you suck at everything else.