Love this! I thought exactly the same thing in my 20s -- that I'd arrived, I'd made it through all that awkward teenage crap, and that now I would simply be ME from now on! Interestingly, I'd say my life changed the most in my 30s (marriage, kids), but I myself have changed more in my early 40s, finally having time to breathe, to not only reclaim my sense of self, but to realize how much that self has evolved, and to care so much less about how I compare or stack up.