Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent 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