You just have to cope. Your body is one thing that is not easily changed, especially something like hand size and shape.
I try to go out into the world thinking my body is perfect, but of course it isn't. I am 6 foot tall, but I wanted to be taller in the past, especially since my feet are massive for my height. But I can't change that so instead I think positively and assume that my body is perfect for me.
Just assume that your hands are the perfect size for something. Like maybe your future girlfriend loves fisting or something. Maybe you need to save someone's keys stuck in a tiny grate, that your hands can fit through.