Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: One more step in long work #visa process is over. Relief. Onto next step. #expat
This tweet contains emotions: 
joy, optimism