What could I do to fix my mandible shape? The issue I have is my face has a masculine look to it. (photos)

I have what I consider a rectangular face shape. I have a larger forehead and I also have a square jawline. my chin points out a little. with my angled out chin and my square jaw line it leaves a lot of "cheek" area. it makes my face look big. I also have a small mouth, that doesn't help. I would like my face to take on more of a V shape. what are your suggestions? in advance, thank you for reading and responding. One of the photos that I chose is not me but I like her transformation.