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: I always bounce back, life goes on man..I refuse to sulk in negativity. Yesterday's problems are just that, it's always a new day 🤗
This tweet contains emotions: 
joy, optimism, sadness