One likes to think one grows as a writer as one ages, else all you get is an 'old' young writer. Beyond that is the changing landscape of the universe and the stories I choose to tell.
I am not sure about facelifts because I wouldn't want to be someone who just looks like she's had a facelift.
I'm certainly not sorry that there were some things I missed. You may think you're missing something at that time but later when you look at it, you didn't miss anything.