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: @AldiToHarrods I'm still too nervous to try it. I need to man up and give it ago.
This tweet contains emotions: 
fear, pessimism