Courtney
Just put it down to "some women have it".
I have met a couple - mostly in the military - who just "had it"
when it came to Navigation. I think "spacial awareness" and
relating the small (you and where you are) to the big picture
(map, map to ground, North, the Sun) helps.
Just like some women "have it" when it comes to dance moves,
"strutting the cat walk" et al while others look like a fish floundering