How do I gain separation off the dribble?

When I play basketball all I have to do is to right by my defender without any moves. But since I'm playing older players and better defenders, I have to make dribble moves to get past my defender. But when I make a move, I don't gain that separation off the dribble. How do the great ball handlers (Brandon Jennings Chris Paul etc.) gain so much separation off of one move? And how do i gain the separation off the dribble as well?