Task: Evaluate the tweet for emotional cues and classify 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 indicate the tweeter's state of mind.
Tweet: I'm way too busy and tired all the time to worry about my past and the things I should be regretting (but I never am).
This tweet contains emotions: 
anticipation, joy, optimism, sadness