I want to tighten my sagging cheeks before year-end gatherings. When should I get a lifting procedure?

Hello. I am an office worker over seventy.

I have many company events and family gatherings at the end of the year, and when I look at my profile photos, my cheek fat has sagged below my chin. I am uploading a photo along with this.

I asked about the type of lifting procedure a while ago, and I am writing again because I am curious about the timing.

I am wondering if the effects of the lifting are visible immediately or if it takes a few weeks for the results to settle.

I would like to ask when would be the best time to receive it in time for the mid-December gathering.

I would like to know how many days swelling or bruising lasts, and whether it will interfere with going to work during that time.

I am elderly and have thin skin, so I would appreciate it if you could also let me know how severe the pain is. Please reply.