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: I think learning classical or ancient Japanese might help me get myself permanently out of depression. I sometimes suffer from sudden
This tweet contains emotions: 
optimism, sadness, surprise