Dear Amy: I have a friend, “Morgan,” who I found out has been cutting herself. Morgan has struggled with depression since she was young. She seemed to hit rock-bottom this past summer. She started cutting her arms with kitchen knives and scissors, including at my own birthday party. At first she said it had been an accident, but as I saw more and more scars develop on her arms, I knew something was wrong. I asked her privately about this, and she told me everything.