To cease to be vain and self-obsessed.
fall off the wagon
To cease or fail at a regimen of self-improvement or reform; to lapse …
shoot oneself in the foot
To act against one's own interests; to unintentionally behave self-des…
cry in one's beer
To feel sorry for oneself; to feel sadness or regret, especially in co…
up one's own ass
Having an excessively high opinion of oneself, excessively preoccupied…
cast the first stone
To act self-righteously in accusing another person, believing oneself …
come to oneself
To gain consciousness or self-control.