We are not born in sin; we are each born with powerful tendencies to both good and evil and the drama of human character is in the struggle and balance between the two. The corrective mechanism is teshuva, repentance.
It didn't matter that I confused Shavuot with Sukkot or had epically bad Hebrew pronunciation or even that I didn't know if I could give up Christmas carols, I could bake a first-rate challah. The rest would work itself out.
We live out our lives in intricate webs of human interaction and connection. The journey towards forgiveness and reconciliation with others is not a minor detail of this auspicious season. It is at the very heart of what the Jewish High Holy Days are all about.