"By now you probably are guessing that the way I'd like the world to be (simple, happy and loving, etc.) isn't the way the world is, and that's very much the reason I don't want to be here."
Maybe the reason the world isn't more like the one you want it to be is that not enough people like you are sticking around to try to make it better.
Another thing you might want to consider is dedicating your life to helping others. If you feel you have no use for your own life, at least you could use it to help others.
And this may help your own particular dilemma in another way. I've heard and read over and over again about how many people who were suicidal felt their lives had turned around once they switched to being self-focused to being other-focused.
Maybe the reason the world isn't more like the one you want it to be is that not enough people like you are sticking around to try to make it better.
Another thing you might want to consider is dedicating your life to helping others. If you feel you have no use for your own life, at least you could use it to help others.
And this may help your own particular dilemma in another way. I've heard and read over and over again about how many people who were suicidal felt their lives had turned around once they switched to being self-focused to being other-focused.