Chin, neck, cheek surgery? Or is there a non invasive way to fix these issues? (photos)

My chin sticks down when I smile, and I have a little bit of stubborn fat that I want gone under my chin?? What's the best option for me? Also a very minor issue is that my cheeks are to big! When I smile they push up all the way to my eyes and make me squint and hurt after a while of laughing, is there anything I can do to make them smaller? Thanks in advance

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