A man, like YOU, who see's his short comings and the failures of his character and chooses to become a better man and does so, is worth his weight in gold.
You aren't just becoming the man your wife wishes you had always been, you're becoming a man that your daughter can look to as the model of a man she will want for HER future husband. We are the people our children will become, so your change is a blessing to your dear daughter. T2