I cannot give you a diagnosis for her but I can say that in life there are things you can change and things you cannot. You have attempted to change your mother and sister. At this time, realize that your efforts are not achieving much success. At some point you should begin to disconnect yourself from those people whom you cannot help, so as to minimize the negative impact they have on your life. Begin to unplug emotionally and interactively. You can’t let someone who is in denial degrade the quality of your life.
This article has been updated from the original version, which was originally published here on April 4, 2005.