Dietary exchanges?

Any one following a dietary exchange type of diet? My nutritionist just started me on one. So far so good. I'm finding it hard to very my starches, and I'm always, almost anyway, over on my veggies and protein. Anybody else doing a similar thing? I think it's sort of common for diabetics, I'm not one, but this is the plan she recommended. Hope to meet some more people doing it and bounce ideas off eachother.