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: not going to waste my energy holding a grudge against someone who wasnt even in my life a year XD \ntime to release those feelings of dislike
This tweet contains emotions: 
optimism