Mazal, I am very sad for your cousin. One solution in the secular world is to create an affinity group or club for other people with the same characteristics. There is a beanstalks social club throughout the USA for women over 5’10” and men over 6’2″. ALso, for people with Marfan’s Syndrome, a disorder of the connective tissue that effects the way people grow.
Perhaps one solution would be to start a Jewish Beanstalks club in your community.
My sisters are quite tall, 5’11 and 6’1″, and I was always used to having girls as tall or taller than me. I married a short girl, not because of her shortness, but because she was tall in many ways other than height.