Procedure to slim down lower cheek/face? (Photo)

Hi, I've already posted this question before but forgot to add that I have been getting Botox injected into the masseter muscle since October, but my lower face is still very wide. I don't know which procedure I should get to slimmen the lower part of my face. I've heard of chin implant and buccal fat removal, but I'm not sure if those are the right procedures or not. Thank you!

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