Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
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