[DistressedDrone]

The other commenter takes this somewhere interesting, but to me the main point is to not get trapped by guilt. That's why I say "you now" and not just "you". I'm not implying that you're the best you ever were, only that guilt (or pride) does nothing to change what you are in the present.

In other words, it's okay to just be you. In fact, the world is only better for it if you can live without guilt. Achievement and ambition are much less real to me.