Hello K
I believe you should try to get your fingers as parallel as they can be – approaching your feet from behind.
If your body is well and truly squashed on the legs AND your legs are well BENT AND you still can’t get your hands in from behind, then introduce a space between the feet of a few inches to about hip width. And then, let me know if this helps you. You can lessen the space over time.
Namaste
Gabrielle 🙂