You feel really silly doing it (or at least I did) but I found it to be extremely helpful to practice with a doll. This was how I learned to nurse in a sling. Before practicing with the doll, my LO would scream bloody murder every time I tried to maneuver her into nursing position in the sling. So I waited til she was occupied and got a doll to practice.
I used a big teddy bear, and even though of course it's nothing like the real thing in most ways, just having the ability to get in front a mirror and practice putting the "baby" in and out, and getting used to how it feels, changing positions, shifting things around, and just basically getting used to the whole thing made such a difference. Being able to do this leisurely, and without the "baby" squirming around, really helped me get the FEEL of it, which I think is really key.
After the doll practice session, it was a whole new world when I tried it with my LO. It was so much easier and before I knew it, we were nursing
