Has anyone tried getting Botox on the tip of their chin?

I'm really bothered by how my chin looks all wrinkled like a gravel field when I clench my teeth or speak, so I'm looking into chin Botox.

Every time I looked in the mirror, I thought it was sebum on my chin and even tried to squeeze it, but I found out it was a pebble chin caused by tight muscles. It's stressing me out because it makes my profile and overall impression look a bit dull when I keep my mouth closed.

Many people get jaw Botox (for square jaws), but I don't know many people around me who have gotten Botox for a pebble chin, so I'm curious about the reviews. After getting it, does the tip of the chin feel a bit pointed and smooth?

If anyone has tried this, please share your experience regarding whether it really smooths out the wrinkles and how long the effects last.