My chin sticks out a lot and makes my side profile look terrible. What do you recommend? (photos)

The chin projection can be improved by diminishing the chin projection. This can be accomplished with a reduction genioplasty or chin shaving. An office or video consultation would needed to give you better guidance. In addition, I would recommend simultaneous submental and jawline liposuction. 

You have an overly horizontal projection of the chin which exists at rest but is magnified when smiling. You would benefit by a horizontal bony chin reduction with removal of some inferior chin pad as well through a submental approach.

By the appearance of your photographs , I believe a reduction in the projection can be achieved by removing a small portion of the tip of the mandible (The projection of the chin). This procedure is performed through a small incision under the crease of your chin, under local anesthesia with a little intravenous sedation. The result  will probably balance your facial features..