I totally sympathize with you, but if you're going to pull that "give me attention, interwebs, or I'll kill myself", then fuck you. Hate that shit.
If you need help, go get help. Also if you need the truth on how bad shit can get, go to 4chan. That'll set you straight just by browsing the asshole of the internet for 5 minutes.
There's a relevant picture I was looking at today that had a girl hold a gun(not sure if fake) to her head while crying and taking a picture. That shit. That shit needs to go away.
Not one to say do it, but take a few days and evaluate you're life. Really evaluate. Not saying it's worth it, but seriously look all the possibilities and good that you can do, and if you really can't find anything that's worth living for, then it's your choice.
Truth.