When speaking on topics like this, it is hard to not sound cliched, or in a way that is presumptuous of another individual's pain. The fact of the matter is that I don't know exactly what you are feeling, because depression is different for everyone.

What I can tell you however, is that your life is important, that you - you personally - make a difference in the world and have a tremendous impact on it. That's not me being melodramatic either, take a moment and think about the website you are on right now. This is a place where depressed and suicidal people gather for a sense of community, togetherness, and support. Think of the lives that you have helped, saved even, from walking down a path that cannot be returned from. Consider the future impact that these lives will have on the world. By simply participating and helping those around you, you've helped someone's son, daughter, mother, father, doctor, manager, or leader. There is not a single person who walks this Earth that is truly worthless, especially with regards to someone like yourself who helps those in need.

So please, please reconsider this. Know that there are those who love you, and care about your wellbeing.