Is it possible to change the structure of my lips? Is there any way I can make it thinner? (Photo)

Thank you for your question. Yes, the structure of your lips can change permanently through lip lift procedures, through the direct and subnasal lifts. I suggest that you move forward and consult with a board certified facial plastic surgeon to determine your candidacy for the procedures, and to see if the desired outcome would meet your goals.
Best wishes,

 The hyaluronic-acid based filler Volbella can create the illusion of longer lips by revealing more vermillion (red part) at your corners. It can also be used to reshape your cupid’s bow and add volume to your lower lip so that it’s in better balance with your upper lip. Consulting with a board-certified dermatologist who’s an expert in lip augmentation and reshaping will get you the answers you need.

John.     Difficult to advise without physical exam, however options include lip fillers combined with modified lip reduction. There’s no way to change the size of your mouth with fillers or lip reduction surgery. Be certain to consult the board certified plastic surgeon to discuss your options. Best of luck.