I advise you not to lose weight in a way that harms your health, which is very bad.
Reduce your appetite, but make sure you eat all three meals. Regular time and moderate exercise, such as walking and stretching, are very useful. I lost 8 pounds in 20 days. But different people's constitutions have different effects, fast or slow, but they are definitely effective. I still hope you can lose weight healthily and don't take diet pills.
I wish you success!