Which procedure would offer a more long term solution for sagging neck and jowls after weight loss? 38 y/o (photos)

38 y/o female struggling after weight loss. I feel my jowls and neck are so saggy I can hardly look in the mirror. I've tried filler in my cheeks and jaw and liked it but it was too expensive for something that only lasted 9 months. I'm looking for something more long term. I thought about PDO threads but feel hesitant.