Procedures needed to correct dynamic chin ptosis? (photos)

Hello! I (F, 20) am looking to correct my biggest insecurity but not knowing where to start. I'm not sure if dynamic chin ptosis is the correct term for my issue, but it's the closest I could come across online. When my chin is at rest, it appears normal. But when I smile, there is dimpling and creasing that looks like a double chin (I am 5'3 and 115 pounds, so I don't think it's an actual double chin). What would be my options to correct the appearance of my chin? Thank you for your help!