Welcome to the forum Dorean and I hope we can help you get started. Do you say that you are new in your ad or mention that you have a lot of spaces to fill because neither of those things are a good idea. Do you have ads on kijiji and godaycare and in large companies with internal sales systems?
Do you have a website? If you would like help with your ad you can pm somebody and we would be happy to give you advice. Do you have a good contract ready? These are the first tools you need to have in place. Good luck.