financial help in texas

I am 26 yrs old and have been wanting to adopt for the last 2 yrs. I have been married for 6 yrs and my husbands kids have lived with us for the last 3 yrs. They are 15 and 11. I want to have a baby around now since the kids are growing but the prices are outragous. I am currently working with an agency locally. But still no results they keep telling me its slow this years. But yet I see all these babies needed to have families when I have so much love to give. Who can help me ???? With financial help??? Both me and my husband work and manage our restaurant. But still have no money for this. Help!! I am in the state of tx