Task: Categorize the tweet's emotional expression, classifying 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 reflect the tweeter's state of mind.
Tweet: Luckily I was helped by some good people. And they also managed to free me of my depression. Unfortunately it only lasted a little while.
This tweet contains emotions: 
joy, optimism, sadness