Yes. I went through what my counselor called "suicidal gestures" rather than attempts, because I didn't take enough pills, and I knew this. It was sort of like Russian roulette.
After having four kids I knew in high school commit suicide, seeing the effect it had on sooooo many people, made me realize how truly selfish and powerful the act is, and totally changed my views on it. But I can understand those feelings of wanting to just end it all.
I think that suicidal thoughts are a lot more common than most people think, it's just no one wants to talk about it/feels too embarrassed or ashamed to admit to it, so people go on keeping the thoughts to themselves and feeling "bad" and isolated.