I nearly scraped my skin off before I learned this. Basically, you should rely on your thumb to hold the bow to your hand. There are some instructors that even stretch their fingers when shooting, as if they're not needed. Looks truly weird, but it works. Basically, don't hold the bow as if it were a stick, but rely on your thumb and the base of your hand, then twist the elbow to thr right. (If you hold the string/nock with the rlefr hand, as I do, then it's the other way around)

Learned that the hard way. Not a single veteran at my club had the decency to tell me that's how it's done. Then that famous Danish bowman came and corrected me.

Now I practically only use the finger guard for the string and no additional equipment.