Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: @ClvlndK8 It's so sad! There's always such optimism with a new year. This is...not good. @BuckshotBandit1 @dapostrophearcy
This tweet contains emotions: 
disgust, pessimism, sadness