Don't kill yourself man. You're not the only one that feels like this and there's definitely a big possibility that there's people out there that care. It's understandable that some people go through hard times, maybe even to the point where they think that their life is incessant and dull, but you must remember this: there's almost always people out there who are willing to help in times of hardship. A brave person is able to cry and stand up five minutes later, determined to move on. There's always a point in life because even if you don't feel as if you have hope for yourself, there's always room for hope for others.
Given that point, no second of life should be wasted upon and indeed treasured like the greatest of diamonds.