Will Botox help with jaw muscles and facial contouring?

Lately, I've been worried because the lower part of my face looks wider and more angular than before when I take photos. My weight hasn't changed much, but the muscles on the sides of my jaw tend to stand out when I clench my teeth, so I wonder if that's making my face look bigger. I wanted to look into relatively simple treatments rather than burdensome methods like surgery, so I became interested in Botox.

I am curious about the effectiveness of Botox for someone like me, whose jaw muscles are developed, making the lower part of my face look wide. I would like to know if the required amount varies depending on face shape or muscle size, and what the recommended dosage is for first-time treatments. I am also curious about when the effects of Botox start to become visible, how long they last, and the appropriate interval for follow-up treatments.

I would also like to consult about the price and total cost, as well as the procedure duration and whether the pain is severe. I am curious about the recovery period if there is any swelling or discomfort after the procedure, and whether I can eat or resume my daily activities immediately. I want to consult first to see if my face shape is suitable for Botox, check the recommended number of sessions and precautions, and then try managing my jawline naturally. Haha.