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 okay, dont worry. I wish i'd been a better kid. I'm trying to slow down. I'm sorry for letting you down.
This tweet contains emotions: 
fear, pessimism, sadness