I would do my very best to do a great job and try not to worry. Come up with some new ideas that will really impress her. Then, you will have done all you can do. It's hard to know what others are thinking. I do know that having a confident approach sometimes goes a long way. If this job doesn't work out, you might find that you will find an even better dream job. Good luck!
Learning continues to be fun and keeps us young.