Is it possible to refine the lines for a double chin and sagging cheeks using InMode or contouring injections?

I am worried because even though I have lost some weight due to the stress of lately, the double chin under my face and the deep cheek fat next to the corners of my mouth are not going away at all. Even if I tilt my head down just slightly, the fat under my chin overlaps, creating a double chin, and when I take a side profile photo, the boundary between my jawline and neck is blurry, making my face look much bigger. Furthermore, the skin around my mouth has started to sag downwards, and I am concerned that it gives me a stubborn, bulldog-like impression. I have tried meridian massages and contouring treatments, but they only temporarily smoothed out the surface and didn't get rid of the fat itself. Please recommend contouring injections or radiofrequency treatments that can clear out unnecessary facial fat cells and sharpen my dull jawline!