For those of you who have received jaw Botox, how effective was it?

Lately, whenever I take photos, my jawline seems wider than before, so I am looking into Botox treatments. My weight hasn't changed significantly, but my lower face looks a bit angular, and I am concerned because my jaw muscles seem to stand out, especially when I take pictures from the front. I also tend to clench my teeth a bit, so I am wondering if this is related to my jaw muscles.

I have heard from many people around me that they have received Botox, but since I have never had it myself, I am a bit worried. I simply want to soften my face shape slightly; I do not want it to become excessively slimmer or look like it has lost its firmness. I want a natural change, but I am not sure how to explain the extent of my desire during the consultation.

I am also curious if the required amount or treatment method varies depending on the degree of jaw muscle development. Since everyone has a different face shape, I assume the amount isn't fixed and I would like to know if it is determined after personally examining the condition of the muscles. I am also curious about the level of pain during the procedure and whether it interferes with daily life immediately afterward.

I have heard that the effects of Botox appear over time rather than immediately, so I would like to know how long I actually have to wait. I am curious if there is no noticeable change at first, and then the jawline gradually changes.

If anyone has received jaw Botox, I would appreciate it if you could share what you checked during the pre-procedure consultation and whether the changes turned out as natural as you had hoped. As I am looking into the procedure for the first time, I would like to refer to various experiences.