I've sent out 30 queries...and yet no acceptance letter?what gives?

I sent five more yesterday night so it is a total of 30. I only got a few responses back saying my book ( it is a children's picture book-which I think is harder to break) is NOT THE RIGHT FIT for them. The rest were saying they had received it and if they liked it they would let me know, etc., I am getting discouraged. I think my query is formatted correctly-the hook, synopsis, and the "about me" followed the the sincerely me and my number. So what gives?