Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: 😩😩😩😩 heads melted, very tired but can't sleep.
This tweet contains emotions: 
anger, pessimism, sadness