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: @Cex Waste of time had this before nothing gets done. Won't be using you again #awful
This tweet contains emotions: 
anger, disgust