Hi @Karen217,
In my opinion the only option for you to deal with this is to make 3 listings, one for each of the rooms you have for rent.
I just checked your listing and what you just explained really doesn't transpire in it - if I was looking at it to rent, I would think I am renting an entire house with 3 single rooms. Important thing, you have to select "private room" and not "entire place" if you are going to live in the premices while your guests are present. Make the situation crystal clear in your listing.
Also, if I may, I would suggest trying to avoid cancelling rentals at all costs, especially 2 days before arrival, it looks quite bad for you and people will have serious trust issues with your listing from the get-go after seeing this. Host cancelling on guests is one of the most damaging things you can do for your listing, just so you know.