I don't know if this will help, but before I took my driving test, I decided to treat myself to a really nice lunch, a nice big liverwurst sandwich. Not the best idea when one has a nervous stomach. But when I took the test I wasn't worried about my driving. I passed with flying colors, and did not lose my liverwurst on the examiner.
You might ask your singing teacher how she sees Fantine, and get her views on FAME.