My son has also attempted suicide. Lucky My wife and I were able to intervene. We went thru several psychiatrist, fights, talks and some crying. Even though it might be the hardest thing keep listening and talking to your daughter. Tell her you love her even when your angry. I had thought my son had emotional disconnected even though I refused to. I felt so crushed because I was convinced he did not care. It was a psychiatrist that pointed out that was truley not the case. He is older now and we get along better.