Task: Assess the emotional content of the tweet and classify 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 best represent the tweeter's mental state.
Tweet: Wish I was a kid again. The only stressful part was whether Gabriella and Troy would get back together or not. #hsm2 #nightmare
This tweet contains emotions: 
fear, pessimism, sadness