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: So unbelievably discouraged with music as of late. Incredibly behind on Completing my album. Not digging this at all.
This tweet contains emotions: 
anger, disgust, pessimism, sadness