How should I schedule and receive obesity injections when managing my diet?

I have been trying to lose weight through exercise on my own, but the stubborn fat in specific areas (upper and lower abdomen, flanks, arms, etc.) is not coming off easily, so I am considering getting a procedure. After searching around, I became very interested because I heard that obesity injections help with shaping the body. I am curious about the typical visit schedule for these injections. I am unsure if I need to go once a week, or if I should space them out every two or three weeks. I would also like to know how many sessions are required to see noticeable effects or changes. If anyone is currently receiving this treatment consistently, please share your thoughts!