I have a severe square jaw. Would I be a candidate for Botox?

Perhaps because I really love squid or chewy foods, my jaw muscles have developed tremendously. When I look in the mirror, my square jaw makes me look too harsh, and it is causing me a lot of stress. So, I am thinking of taking this opportunity to get Botox to make my face slimmer.

I'm confused whether my bones are wide or my muscles are just big. Can someone like me, who is "muscle-heavy," regain a V-line with Botox? I know a consultation at the clinic would give me a precise answer, but I'm asking this question to know in advance if I'm definitely a candidate for Botox before the procedure. My biggest worry is that I might have trouble chewing or that my smile might look awkward after the treatment. Please give me some advice! I'm so desperate.