The 2 sides of the body are not the same and can never be made to be the same. Exact symmetry does not exist in nature. In your case even the bone sockets around each eye are not symmetric. You can make things a bit more symmetric though. My first suggestion would be a filler injection to the...
As a specialist in facial aesthetics and a board certified plastic surgeon, I hear concerns like yours quite often. As we age, we tend to lose facial volume, and in addition, the face (thanks to gravity) begins to fall forward and down. In women, this translates into a square, masculine jawline...