Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: @CarrieLynne2323 totally get it. When you've said no to donuts 13 times one week and lost 0.3 lbs you get discouraged! But it's not linear 😘
This tweet contains emotions: 
joy, optimism, pessimism, sadness