“When you become a teenager, you step onto a bridge. You may already be on it. The opposite shore is adulthood. Childhood lies behind. The bridge is made of wood. As you cross, it burns behind you” Gail Carson Levine, an American author.
Interesting thought. On the one hand your perspective is changing radically. You are beginning a lifetime of self and “other” discovery in a new paradigm.
However, the scars of your childhood are deep in your subconscious mind. They can burn over a lifetime or they may not.
I am still making that journey in my eighth decade. The good Lord makes all things new every morning for many of us. Our end involves becoming more human in his hands, if, we have chosen to follow his lead. I did so 36 years ago and have not looked back. It is the central core of my life.