Being embarrassed by things you did or said in the past is just a sign that you've grown since then. You disagree with your past self? Well that's great. It shows you've thought more about things since then, and come to a conclusion that is probably more informed as you've had extra time to absorb information and think things over. Embarrassed by an old drawing you did that you were once proud of? That shows you're more skilful now if you're able to see its flaws, or at the very least you've developed a more critical observational eye. Same goes for anything you've created. Embarrassment at anything as a knee-jerk reaction just shows you've c