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: @excalibater I'm very shy irl and lately I feel like everyone's doing their own thing and I don't fit in anywhere and I feel lonely :(
This tweet contains emotions: 
fear, pessimism, sadness