Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
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