Being self-centered isn't bad on principle.
If you go out of your way to put others down to prop yourself up, sure, that's bad. But we all know this, and "selflessness" is promoted so much nowadays that I don't feel it needs to be reinforced.
If you need to be more empathetic or kind or whatever, the people around you will let you know, in which case it's less a matter of morals that fall from the sky, and moreso a matter of cohabitation. Do what makes things go smoothly.
If you feel you might need it just for internal reasons, ask the Gods, and they will put you in situations that teach you to be less self centered in a safe way if it's needed.