I really, really hope you're reading this thread. If you are, look at the response you're getting from people you've never even met. Now imagine how your close friends and family would feel if you went through with this.
You may well believe that nobody cares if you live or die. This thread should put that notion to bed immediately.
If I could go back in time and tell my younger self one thing, it would be this: no matter how bad things seem at a given moment, it's going to be OK. A lot of people, as they get older, would say the same thing. I don't want to trivialize whatever you're going through, but I promise that it won't seem quite so dire in retrospect.
I don't post here often, and I don't know you. But I've been where you are right now. It sucks, but there are more people than you know who would bend over backwards to help you through whatever it is you're dealing with. I hope you're still reading this thread, because it proves that there are people who care. You're not alone.