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: @wengzyjb I don't even know na naa koy beautiful nightmare hahahaha oks
This tweet contains emotions: 
fear, joy, love, optimism