How can I stop seeing the futility of EVERYTHING in this world?

I tend to have an over-realistic perspective on life, so much so that it ALL seems a total waste, futile, in vain. I often reach the point of saying that I wish it would all be over soon. I don’t think it is necessarily depression, it just seems to be a realization of our temporariness. I know it is not a healthy outlook, especially for those around me who see me as doom and gloom personified! Am I one of the very few who see things that way?