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: There's many things I don't care about, and many things I do that I don't speak on because it's such a heaviness even when released...
This tweet contains emotions: 
fear, pessimism, sadness