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: My encouragement today is my dog while my head is in a fog. #epicfail  #feelingfedup #tired #ihaveheardeverything #wondering
This tweet contains emotions: 
joy, optimism