Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
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