You are Lucky your daughter feels that she can tell you difficult things like that, I am really happy for you both. I am sure you can help each other better since you can understand the darkness that comes with depression. It took me way too long to be able to tell my mom. And that led to massive problems no one realised were probably mostly caused by being depressed. I was diagnosed with depression at age of 15 but have been depressed since childhood. I hope you both feel better.