Performing in a dream is read as how you present yourself to others and how you expect to be judged. Feeling unprepared points to everyday pressure; a performance that flows to confidence.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.