A girl I know fell forty feet and broke her back, and will be in a wheel chair for the rest of her life, please, if you decide to kill yourself, don't do it this way.
Life can be ****ty, there's no doubt about that, people hurt, people die, people kill each other, people hurt each other, and you and everyone you love will eventually die. Some days it doesn't seem like it's worth going on... but if you look hard enough, there are things and people that make it worth it to get up in the morning. Even if life doesn't get better, even if you spend it in pain, there's always something or someone worth living for, and even if that leaves, the exchange made both you and the object of your attention better in some way, and there's probably something else around the corner. Don't give up on life, demand all you can out of it while you still have it.