Traduction de "self-centeredness" en français

I suppose in my youthful self-centeredness I had never considered spending it any other way.

Je suppose que, dans mon égocentrisme juvénile, je n’avais jamais imaginé le passer autrement.

A little self- centeredness rearing its ugly head

C' est un petit peu d' égoïsme qui montre le bout de son nez