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: This is the first time I've written anything on this series in over two years, so I'm checking back in for one last nightmare.
This tweet contains emotions: 
fear, pessimism, sadness