Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
Tweet: Hate knowing I have to get up at half 5 for gym in the morning it's so depressing
This tweet contains emotions: 
disgust, pessimism, sadness