I've tried twice. Overdosed on painkillers and hospitalized, once overnight, for it, and entered into outpatient therapy. That was 3-4 years ago, and I'm much better now. My advice for someone who reads this is find another way to escape. I'm so happy I didn't succeed now. The pain was unbearable at the time, but it's dulled. Changes just have to be made, somewhere, somehow, and no matter what, you have to escape what's killing you. For me, it was stopping joint custody with my parents and, eventually, graduating high school, that brought me out of my suicidal mess. I still have depression issues, but my moods fall within a normal scale for the most part.
So, yeah, please get help if you are wanting to die. I never thought it could ever get better, but it did.