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: As your own lives in order to complete our amazing life journey successfully, it is there. #bitter
This tweet contains emotions: 
anger, optimism, sadness