The reason why you lost weight for the first time was because you consumed more than you absorbed, exercised more and ate less, so you succeeded.
After losing weight for the second time, half a month has passed, and the weight has not changed at all, which shows two problems: First, the amount of exercise is small; One is eating too much.
Solution: on the one hand, increase the time of aerobic exercise, first do more running exercise, less strength exercise, run to reduce fat, and strength exercise to shape. At this stage, do more aerobic exercise first; On the other hand, you can eat breakfast and lunch, but you must control the amount. Eat less staple food, less greasy and fried food, and more fruits and vegetables.
Remember: losing weight is a task that you need to complete all your life. It doesn't mean that if you lose weight successfully, everything will be fine and you can eat it all. After losing weight successfully, if you want to eat more, you should keep doing a lot of exercise. If you want to exercise less, you must control your food intake.
I wish you success in losing weight!