Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Having a baby born too soon is #lifechanging 6 years on and it feels like only yesterday #sad #happy  #emotionalrollercoaster
This tweet contains emotions: 
joy, love, sadness