19 Year Old, Chubby Cheeks? (photo)

        Although a physical exam is helpful to confirm, a buccal fat pad removal procedure would give you improvement in the manner you seek.  Although it is difficult to determine how beneficial a chin implant would be from the pictures due to absence of a profile view, I think the implant would probably improve facial dimensions and proportions as well.  Good luck.

Young patients with wound and a bit wide face could achieve a thinner face with plastic surgery. Some of the procedures that help achieve that target the fullness of the lower cheeks.The fullness of the lower cheeks is caused by different structures: The anterior half of the lower cheek fullness is caused by enlarged buccal fat pads. The fullness  of the posterior half of the lower face is caused my enlarged masetter muscles. Therefore, in order to decrease the volume of these areas ( which translates on a thinner face) requires different plastic surgery procedures.Buccal fat removal corrects permanently the fullness of the lower anterior cheeks. Botox treatment to the masseter reduces the fullness of the lower posterior cheeks. The video below helps to understand who could be a candidate for buccal fat removal. 
John Mesa, MDBuccal Fat Removal Specialist Plastic Surgeon

Based on your photos, you do seem like you can benefit from a buccal fat removal procedure. It can help reduce the chubbiness in the lower anterior cheeks which you seem to have and complain about. Further enhancement can be made on other features of the face for other desired effects as well. It is best to consult a board certified facial plastic surgeon in person and discuss your options after a physical examination.Hope this helps,Ali Rıza Öreroğlu, MD FEBOPRASEuropean and Turkish Board Certified Aesthetic, Plastic and Reconstructive SurgeonIstanbul, Turkey