Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture 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