Should I pronounce らりるれろwith d or l since I can’t do it the right way?

I’m learning Japanese and I want to know if I should pronounce it like dadidudedo or lalilulelo. Especially when it comes to Rya, ryo, and ryu. I’m American but I speak Italian and Spanish so I know the phonology of how the r should sound but I can’t apply it when I try to.