Yeah, like many other people I was around 12. I had some anxiety/depression, but never enough to seriously try it (plus I'm too squeemish to ever go through with any sort of suicide). However, I have temporarily been on several anti-depressants and other medications since then (for a variety of reasons), and in addition to all sorts of fun side effects I usually had "suicidal ideations", even since my depression has mostly cleared up. If anyone here is on such medication or goes on it, just watch out for seemingly random thoughts of suicide as it can be a "side effect" of the medication, and you should tell your doctor immediately. (Not trying to scare anyone out of taking medication--trust me I am a total freak medically and I ALWAYS get every freaking side effect--as they can do a LOT of good)
