Thank you for your question. There are a few ways to slim the face from the front perspective. Buccal fat removal helps narrow the cheeks by removing fat using small incisions on the inside of the mouth. This can be done in the office with local numbing. Another popular treatment is using botox...
There are twi options for making a more v-shaped chin, intraoral t-shaped osteotomy (mini V line surgery) or a submental chin shaving technique. Each method has their own advantages and disadvantages.
Performing double jaw surgery is rather invasive, and is performed by an oral surgeon in a hospital setting with an overnight stay at the hospital. Probably best to just start with the rhinoplasty procedure if the dorsal hump bothers you enough. A closed rhinoplasty approach can accomplish...