What is the recommended frequency or interval for square jaw Botox?

Hello, I am a male office worker.

I am writing this because I have been stressed out due to a problem I have.

I enjoy working out, but I'm worried that my jaw muscles seem to be getting thicker, perhaps because I clench my teeth while exercising.

People around me recommended that I get square jaw Botox, so I'm looking into it. I've heard that people usually get it regularly rather than just once.

For those of you getting square jaw Botox, what is your recommended number of sessions or treatment cycle? I am curious whether getting it every 3 to 6 months is sufficient, or if the results last longer without the muscles growing larger once a certain number of sessions are completed. Reviews from men are also welcome.