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: 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