I looked at your ad and it's great. Just keep trying and waiting and interviewing. I always recommend reaching out to friends and family and spreading the word and if you know anybody who works for a large corporation, hospital, factory they usually have electronic internal systems where they can place ads and that reaches tons of people.

It's really hard to get going but once you have pictures on your website of all the children playing and creating it sells your daycare for you before you even meet the families. Good luck!