Task: Analyze the tweet's emotional connotations 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 best portray the tweeter's mental state.
Tweet: finally leaving my first job soon. i've been working here since i was 16. going to be kind of bitter sweet
This tweet contains emotions: 
sadness