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: How brave are the young individuals that have opened up to us about their #depression and #anxiety to help raise awareness!! @beyondblue
This tweet contains emotions: 
fear, optimism, sadness