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: Three more shifts then I start the next part of my tutorship in response #enjoyingthelastfewdays #excited  #newchallanges
This tweet contains emotions: 
joy, optimism