I am concerned about marionette lines around my mouth and sagging jawline.

Hello~~

I often hear that I look stern because of the marionette lines under the corners of my mouth, so it’s actually kind of stressful for me.

As I get older, the skin around my mouth is sagging downwards, making me look like I have a grumpy face, and it really upsets me. I'm writing this because I'm not sure if Botox is the right solution for this, or if I should use fillers or lifting threads instead. I'm hesitant to make a decision because I'm worried that I might end up smiling awkwardly or looking unnatural after the procedure. Has anyone had this procedure done with similar concerns?