Hi Margaret
BNB will promote your listing as a new host so hopefully this will attract the bookings you want.
After a few weeks/months you drop down the listings.
Think about the sort of guests you want to attract and the location you are based in and you can build a marketing plan to drive traffic to your listing.
If you like to blog or use social media, use that, join your local tourism organisation, partner with local hosts, partner with conference organisers....it really depends on your target audience.
Good luck.