Will a genioplasty help me? (photos)

For a long time I was bothered by the size of my nose. However, I noticed that my chin (underbite) in particular might be the reason for this. As a teenager I did wear braces for many years, including something that was supposed to bring my lower jaw more to the front, which kinda helped a little bit. Can genioplasty help me? (I like my chin/jaw from the front, I definitely don't want to get "wider"). Thank you.