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: Hello my dear friends, I will be back online this Friday night. I miss you! #sober #sobriety #recovery
This tweet contains emotions: 
joy, optimism, sadness