Task: Categorize the tweet's emotional expression, classifying 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 reflect the tweeter's state of mind.
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