Can I have a surgery to make my chin smaller? (photo)

It appears that you have a short chin in a vertical dimension and a little too much projection. I would recommend a genioplasty to lengthen your chin to reduce the deep mentolabial fold and set the chin back a bit.

Thanks for your pictures. In my professional opinion, improving the volume of your cheeks further enhance the attractiveness of your face. This can be achieved by fillers or cheek implants. Softening (slight chin reduction) can also help. I hope that this information helps.