Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
Tweet: But is it your fault you worked hard and stayed the course until eventually it all paid off, no! so let it be known and count up!
This tweet contains emotions: 
anger, optimism