its not even a joke, im at my worst at the age of 19. most of my friends too, not exactly 19 but somewhat around that number.
i think it has to do with growing up. if i can at least give you guys a life advice, sometimes we need to admit that growing up is sucks. we have all the joy in the world when we were younger and suddenly life becoming more mature, dark, and most of it are sucks.
but we need to stand still, trust me, once you get over with it, you'll become a person with a better understanding of how life is works.
and don't forget to tell whatever inside your mind to ANYONE that you feel comfortable with. the burdens will becomes more easier if we're not only carrying it by ourselves.