Did I choose surgery years ago that is making me look worse now? (Photo)

32 years ago at age 32.5 I got a hard silicone chin implant when I had my rhinoplasty. I have been happy with the result until about 5 years ago when at age 59 I definitely noticed "jowls" or prejowl sulchus(?) I wear sunscreen on my face and neck and topical skin care but I feel like my face has dramatically sagged into a rectangular shape. Is this exacerbated by the type of implant or placement or is it just being 64.5 years old?