The pain of seeing our mistakes.

Recently I have been going over my books preparing for an audit.  I found that the most difficult part was finding my own mistakes.  Looking back and saying, "How could I have made such a dumb mistake."  I suddenly realized that this is the pain of Gehenom (in a tiny way).  When we get to Shamayim and we see what we could have been it will be unbearably difficult.  I have resolved to try harder to live my life in such a way that I don't have to look back and see as many mistakes.  I hope that I can keep even a tiny part of this resolve alive.