Everything you do is a futile; your girlfriend is probably out having sex with the guy she left you for; we are all born alone and die alone and most of our lives are permeated by a vast unquenchable void of loneliness, misery, and isolation of which our only reprieve are brief moments of distraction; your parents never really loved you; everyone you've ever known has only pretended to like you but were really callously laughing and snickering at you behind your back while sharing in-group jokes about you at your expense with their group of friends; wars, famine, disease, and destruction. Everyone is going to die and the human species will go extinct; the Earth will eventually be engulfed by the Sun when it becomes a red giant in approximately 5 billion years. The Milky Way is going to collide with Andromeda. The stars will burn out one by one as the universe grows darker and colder in an event known as the Heat Death until eventually the universe is a cold dark void in which there is no trace of any life in this universe. There. Feel encouraged yet?
Encouragement.