Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: when u havent learned to swim 🤔 but you keep working out so you're denser and less buoyant 😞 but swimming is scary 🤔 but also u cant swim 😞
This tweet contains emotions: 
fear, pessimism, sadness