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: I just watched the video that i took at troye's concert last year during happy little pill and now im crying i miss him @troyesivan 😭
This tweet contains emotions: 
sadness