How To Get Rid Of Chubby Cheeks And Mandibular Hypertrophy?

i feel i developed i chubby cheeks and hypertrophied mandible when i ate gutka for three months as an alternative, when i quit smoking. After 3 months of 1 or 2 small packs a day i finally quit gutka. I am very unhappy with my chubby square face. My question is, is it because of quitting smoke or eating gutka. how can i get rid of it, as i was not like that before. Its been 5 years since then, but no change and still chubby and square