“Special snowflake syndrome” is a biological imperative.
If we aren’t biased to love our own child more than another child, or our own pets over other pets, there would be chaos.
Same goes for ourselves. If we’re not biased toward believing in our own success over someone else’s, we would ultimately be removed from the gene pool and/or would not have substantial income to provide for our family.
So, actually, “special snowflake syndrome” is an evolutionary advantage. It means you think you are important and special enough that you believe in yourself, and you’re biased toward your own special success , your own special dreams coming true and your own special seed spreading.