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: Starting to get butterflies in our tummies about tomorrow...who will win?! #nervous @IPMCOGSAwards
This tweet contains emotions: 
fear, pessimism