The truth is that we can overhaul our surroundings, renovate our environment, talk a new game, join a new club, far more easily than we can change the way we respond emotionally. It is easier to change behavior than feelings about that behavior.
You could say sorry," suggested Harry bluntly. "What, and get attacked by another flock of canaries?" muttered Ron. "What did you have to imitate her for?" "She laughed at my mustache!" "So did I, it was the stupidest thing I've ever seen.