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: That moment when you look back and realise you've been a #selfish #horrible #judgemental person. #FeelingAshamed
This tweet contains emotions: 
anger, disgust, pessimism, sadness