Worry less about the person you once were. Or the person you dream you will someday be. Worry about the person you are now. Or don't even worry! Just be that person. Be the very best version of that person you can be.
"There's a monster at the end of this book. It's the blank page where the story ends and you're left alone with yourself and your thoughts." Night Vale's words of wisdom ring true when it comes to reading. And basically everything else.