Margie, I agree with others you put your heart and soul into it but as we know it is not easy!
When you go through the review period have a look at, time of year, cost of event and the area you are aiming at, perhaps cost is too much as they go through treatment and maybe something like a Trivia Night to test the waters for support with a guest presenter and perhaps a silent auction...…………….only a thought...……………..please be proud of what you set out to do. When you try something like this again see if you, or someone from the Charity, can be a guest speaker at Community groups to see if you can enthuse them into attending and or contributing in the way of sponsorship, financial donation and or items for silent auction
In the meantime here's to a miracle for you for the event to go ahead
Take care