Is Creole a mixture of Black (African American) and French? If not, What is it?

I'm doing a project for school about my heritage. I am mixed with French, Black, White, and Indian. My family says I'm Creole, but they won't explain what they really are, other then we come from New Orleans, and we're known as the "Voodoo People". I am mostly aware of any other details about Creoles, all but what my question is stating. So please, dose anyone know if Creoles are African American or anything else? Thank you. <3 Oh! And what language do we speak? French? o_O