Probably 16 or 17. It was probably more mixed though. I was "happy" and suicidal at the same time. Then I got put into a psychiatric hospital and that is when I was diagnosed as Bipolar. Prior to that, I always had trouble with depression, so that nearly 7 month period of being "happy" pretty quickly ended when I went through a bunch and attempted to take my life. Very happy I failed though. I've had a lot of great things in my life and now after 4 years of struggling, I'm on track to managing my Bipolar as best as I can.