(1) Every human being is born with some unique quality and strength in this earth. As human grows if he/she recognizes that quality and work on that then that will bring success to him/her and if he keeps on comparing with other quality and strength, then it will end up in a depression and failure.
(2) As pointed by you, if at all it needs comparison then the best way out is to compare with self or compare with yesterday to make our today and tomorrow better.
(3) This article should be read by everyone in this platform and I am sure, one may get a an unanswered solution of his.her life. Thank you.