Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
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