If you're aware of when you've done or said something wrong, then you are growing and maturing. Nobody stays the same; our experiences help to shape us into who we are and the people we one day will become.
Everybody messes up.
Don't let your mistakes define you.
These mistakes are a thing of the past; you can focus on what you've learned from the experience, but don't dwell on the mess-up itself.
Don't forget it.