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've been in such a bad mood this week, and work has been horrific, so I decided to start a scrapbook of my summer vacation
This tweet contains emotions: 
anger, disgust, fear, sadness