Some secrets are best kept to one's self.
Think of them as lessons learned... you will serve your time for the whole of your life living with them. If they haunt you they will be chained to you always. I think the concept of the confessional in the Roman Catholic Church was partly envisioned as a kind of therapy for such "secrets"... a way for people to get things off their chest, as it were.
One presumes you are a better person for your experiences be they good or... not so good.