no, your not alone.
i have felt that way for a long time and it makes me pretty happy to see someone even remotely like me has made it to 40
even though i have no idea if you have felt this way all along.
i don't mean anything by this but i agree with your observation that most of the people in this forum were either just dumped or are, again no offense, paranoid schizophrenics. i remember being 6 years old and wanting to kill myself every day for months on end until my mother put me on prozac, which gave me a really sensative stomach, and after about 7 months i started throwing the pill up every morning. Not on purpose. since then i have learned that the only thing worth living is reading, being completely alone (aka swimming, nature, hiking), and the promise of a better afterlife.
anyways, enough about me, basicaly my point is that i have always been depressed, but you can be depressed in many ways, like i am currently stressed but i don't want to kill myself, i'd just rather not exist anymore, where as when someone has a traumatic experience, they WANT to die.
edit: i just realized that this was the suicide section of a relationship forum. that makes sense. i thought it was a depression forum, hence the name eNotAlone.
most likely your life was going relatively smoothly 2/3 years ago when you posted this, but you were still depressed. well, you weren't alone and you aren't now.
and thankfully, i'm not either.
to a happy afterlife.
mike