What can I do to correct sagging chin and achieve a square look? 15 years since last procedure (photos)

Consultation with a Plastic Surgeon Situation: I am a 40-year-old male who underwent chin, jawline, and cheek correction with permanent fillers 15 years ago. The reason for this was a chin shaped like / (Fido Dido), which wasn't too bothersome, but it caused a lot of teasing. As a result, the mentioned areas were corrected with permanent fillers. Problem:: The oeft chin corner is bigger sagging. How to correct this chin to look normal and square again? The sagging parts