Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: I need to study up on celebrities' birthdays bc my heart almost stopped when I saw Harrison Ford trending... 😯 #relieved
This tweet contains emotions: 
joy, love