Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: Perks of having that shit: I lost a friend somewhere along in the bitterness
This tweet contains emotions: 
anger, disgust, sadness