J.G.
You are not alone! My boys go through stages as well. If you have a rocking chair, you could try rocking her to sleep. You might want to have a winding down routine before naps. Lunch, read a book, rock to sleep. My BIL swears by this one (and I admidt, I've tried it a couple of times). He'll give is child a cookie or some candy, something with sugar in it. Then he'll let them play a bit, read a book and rely on the sugar crash to get them to relax and go to sleep.