I think everyone feels like that at some point in their lives. Some of us just go through it more than others do, and its nothing fun. You really should try to find something to take your mind off of these thoughts, or you should try to talk to someone. Things like this could make a world of a difference.
I'm here to talk if you want to..I've been at that place more than my fair share of times.
-------
grow up, stop acting like children, stop crying for attention.