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: it gets better. without explanation; you just wake up one morning and you’re just happy, totally and utterly elated.
This tweet contains emotions: 
joy, optimism