Yes but that is highly circumstantial and we have no way of knowing or proving what she was referring to or thinking or what her intentions were at the time she wrote that statement and therefore such a statement really has no place in a court of law since any interpretation of what she meant or intended by it would be speculation and not based on fact.
True. Maybe she meant something like "I should have gone to church....because then everyone could have seen my new outfit". The bare statement doesn't indicate remorse or guilt feelings or a wish that things had gone differently.