How do you stop your chin from 'melting' into your neck? That angle is gone for me.

I was shocked by this. Botox along the jawline and upper neck improved my profile more than any cream. It's not cheap, but lasts 4 months. Also, face yoga for the platysma helped a bit. This explains the anatomy well: https://bellasanamedspa.com/blog/neck-and-decollete-rejuvenation