You have two separate issues that are related to your jaw anatomy –dislocating (popping) – joint anatomy and an overall small jaw.
Some exercises and training may help you avoid dislocating your jaw.
Implants could make your chin a better size for the rest of your face.
Thanks for the question, Based on what I see in this picture, You can benefit from jumping genioplasty with out advancement. It is a procedure that bone cut is done through incision inside the mouth and chin is lengthened vertically with out advancement. Best Wishes,