Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: “The immense importance of football is sometimes scary. When you don’t win you are responsible for so many unhappy people.” - Arsene Wenger
This tweet contains emotions: 
pessimism, sadness