How effective are obesity injections?

Lately, I've been working hard on my diet and exercising every day, but I'm worried because I'm not losing body fat as effectively as I expected. In particular, since the lines in certain areas aren't toned well, I feel like I've reached my limit trying to do it on my own, so I'm looking into getting help from a procedure. Coincidentally, many people around me have recommended weight loss injections, so I've become interested.

I am curious to know how effective the weight loss injections were for those who have actually received them. I would also like to know how many sessions are typically required to see noticeable changes, as well as the pain involved during the procedure and how to manage aftercare.

If anyone has personally tried weight loss injections, please share your honest reviews or tips!