Does the effectiveness of diet injections vary significantly depending on one's body type?

I've tried dieting several times before, but it always followed a similar pattern. I would be full of motivation at the beginning and do well, but there were many times when I would give up once I hit a plateau.

So this time, while looking for a way to get even a little help, I found out about diet injections. I was surprised to see that there were more reviews than I expected, but I noticed that satisfaction levels varied quite a bit from person to person.

I became curious because some people said their appetite decreased significantly, while others mentioned that although there was a change in weight, it wasn't as big as they had expected.

Has anyone experienced whether this difference is due to one's constitution or varies depending on lifestyle habits?

I exercise about 3 to 4 times a week and pay attention to my diet to some extent. However, my weight loss is too slow, so I am considering whether combining it with diet injections might be helpful.

I am also wondering if there are any special tests or preparations I need to make before starting the diet injections. Since it is my first time, I don't want to start without knowing anything and end up panicking.

For those who have actually tried it, please share your honest reviews on whether the effectiveness varied significantly depending on your body type and how satisfied you were!