Life can really suck at times, there is no denying that.
I wish there was something I could put in a forum post that would help you if you're feeling like that, but I wouldn't know where to start.
There are however people you can talk to
, anonymously, who would be able to guide you through, if not the answers, then at least the right things to be thinking about.
If you actually feel like this, then give them a call - it cant hurt.