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: Sometimes I can't believe I've made it this far.169 days!! I threw out my demons n got #sober #clean, n started #recovery.#Sobriety is #2.
This tweet contains emotions: 
joy, love, optimism