Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: @DatGuydARK I wouldn't fret. There's too many opportunities in life to worry about one not working out.
This tweet contains emotions: 
optimism, trust