With the kisser in the corner of your mouth, then I guess your anchor is right under the jaw line. That's okay for someone with a short face but for those of us with a longer face - longer distance from the jaw to the eye - it's too low.

I anchor with the big knuckle at the base of the index finger buried in behind my jaw, right at the ear lobe. Palm facing away from my face. There's a little pocket right there that's just right for my knuckle to snuggle neatly into.

That should raise your anchor by a couple of inches. Hopefully it'll be just as comfortable for you. Otherwise you'll have to try and find a sight with more vertical travel. Or you could take your bow to a machine shop and get new sight mounting holes drilled and tapped - but that will void your warranty, so beware of going that route.