First of all, the time is too short, only half a month, and the effect will certainly not be too obvious.
Look at those who can lose dozens of pounds, which is often the result of months or even years of exercise. Losing weight is also the result of accumulating over time, which does not mean that our weight can suddenly plummet. So when we lose weight, we must persevere and stick to it. Stick to it for half a year, and then see the effect, it will be completely different. Secondly, I think it's because people's constitutions are different. Each of us has a different constitution. Some people are not fat even if they eat, and some people will soar even if they drink a mouthful of cold water. So there must be a difference in losing weight. Some people are born with balloon figures, and they are embarrassed to say it. Some people are born with fat physique, so they are so strong in exercise. These are very common. Then it may be because you exercise, but your diet may not be properly controlled and conditioned. There is a good saying that if you want to be embarrassed, you have to open your legs and shut up. Only by combining the two can we achieve effective results.
Having said that, it's easy to lose weight. First of all, you must have perseverance, be thin or die. Furthermore, you should have a good attitude and not be too extreme. Finally, we must control our diet and eat less, which is the most important thing. Only by doing the above can we really lose weight.