For those getting square jaw Botox for the first time, when do you start to feel the effects?

Has anyone else tried square jaw Botox?

How long after getting square jaw Botox did you feel the effects?

Maybe it's because I eat things like dried squid often, but it's been a long-standing concern of mine that my jaw looks angular.

I've been thinking about getting Botox, but I kept putting it off because I'm scared of the injections themselves. However, I've seen so many reviews saying the pain isn't as bad as I thought, so I'm going to muster up the courage this time lol.

But I'm curious when the effects start to show after getting the shot.

I can't tell if it shows right away or if I have to wait a long time.

By any chance, how long did it take you to feel a difference the first time you received it?