your chin will need numerous syringes, but im not sure 3 syringes there is the best look for you. I would suggest a few to the chin, and then some to the later cheek and lips to give overall facial balancing. some of why your chin isnt as "good looking" is because you need botox to calm the muscle there that is very active, this will help the filler look better and last longer. plus the upper chin (above the bone and around the mouth) needs balancing with a more soft filler like restylane refyne or belotoro. I suggest seeing an expert in facial sculpting AND starting at home dermarolling to improve the look of your chin area overall (cobblestone). at home peels like cosmelan, enlighten and aerify along with dermarolling (MTS roller with anteage MD ampules weekly, see linkt) should be started now to prevent further aging. For facial rejuvenation, I would suggest a combination approach of 1) skin care with products and PRP/microneedling 2) PDT light therapy few times a month with growth factors 3) laser treatments like clear and brilliant regularly and a few times a year Fraxel/halo Viva, Co2/Erbium 4) Sculptra injections a few times a year for collagen production with fillers like juvederm/restylane/belotero/radiesse/bellafill 5) thermage/ultherapy for yearly skin tightening with or without PDO or cone based instalift threads for lifting 6) botox every 2-3 months to stop movement lines and prevent lines at rest 7) deep microneedling RF like Fractora/morpheus8 for tightening of the skin 8) Vascular laser like vbeam/excel V or BBL forever young treatment every quarter (3-4 months) Best, Dr. Emer.