What else can i do to kickstart business?

The sameday courier business has gone down to nothing,ive tried telesales, people say theyll use u but dont,ive tried every courier in my area for subcontract work,leaflets,cards advertising.Mean while i have to pay for van ANYTHING else that i might be able to do i havent thought of,any thing i might have missed out,anyone else i can target answers much appreciated.My van is lwb transit and im running out of ideas and money very fast.