Hi. I was afraid I'd miss, but here's a tip: look at the width of the bridge of your nose and the length of your earpieces. Also look at your old glasses, if you have any. I was struggling with choosing glasses for a gift for my girlfriend for a long time, so I'm figuring it out, if you want to check out where I got my glasses, it was the Carrera ladies sunglasses collection at Classyeyewear https://classyeyewear.com/collections/carrera-sunglasses-women , and they fit her perfectly by the way!