Will a double chin lift make my double chin disappear? This is seriously my biggest concern these days.

I have been worrying about how my jawline has noticeably sagged, so I have finally decided to seriously look into double chin lifting. My weight hasn't changed much from before, but it feels like fat has accumulated and is sagging specifically under my chin, causing me immense stress every time I take a selfie. Especially when looking at my profile, the boundary between my jaw and neck appears blurred, making my impression look dull and older. So, I have decided to take the plunge and start managing this.

What I am most curious about is, of course, the actual satisfaction with double chin lifting. I looked into it and found that there is a really wide variety of methods, ranging from ultrasound lasers like Ulthera and Shurink to fat-killing techniques like InMode, or even thread lifting. For someone like me with some sagging fat under the chin, I am wondering which method provides the most dramatic results. I am curious whether the lines are refined immediately after the procedure, or if it feels like the skin is gradually plumping up and tightening over time.

I would also like to know roughly what the price range is for double chin lifting. Since promotional rates vary by clinic and prices differ widely depending on the number of shots and equipment combination, I have no idea how to set a budget. I am also wondering if satisfactory results are usually achieved with just one session, or if it would be more cost-effective to sign up for a 3-session package. As a working professional, I am also concerned about how long bruising or swelling lasts after the procedure.