Task: Determine the dominant emotion in the tweet and classify it as either 'neutral or no emotion' or one of the eleven provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Ugh.. Why am I not asleep yet. Fml. I think low key I'm afraid I might miss something. #SleeplessNight #sleepy
This tweet contains emotions: 
disgust, fear, pessimism, sadness