What is the best procedure for getting a double chin when my weight remains the same? ㅠㅠ

My weight hasn't increased at all, but my jawline keeps sagging, and I feel like I'm turning into a double chin ㅠㅠ It's so upsetting that my jawline looks saggy every time I take a picture. What is the most effective lifting procedure for really lifting and shaping a double chin? I've heard InMode is great, but I'm a little nervous because I'm worried about a lot of bruising or it being super painful haha. Please give me some serious recommendations if you've seen results with it for your jawline ㅠㅠ