Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
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