We are all doing the best we can with what we have and what we know right now. It is easy to look back and think, “I should have known and done better,” but if you really had known better you probably would have done better. Don’t beat up yourself, or anyone else, over what has happened in the past. The past is done, you can’t change it. What you can do is learn from it, so that next time you will know and do a little better.