Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
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