Exercise to lose weight needs to reach the heart rate. Generally, moderate-intensity exercise can reach this heart rate in about ten minutes, and it takes more than twenty minutes to exercise at this heart rate before you start to consume fat.
Therefore, half an hour is the least. If it is less than this time, you won't exercise before you start or when you start burning fat. The natural effect is not as good as aerobic exercise for more than 40 minutes.
If you think skipping rope is too difficult for you, you can do aerobic exercise.
The action is not so single, it should be better adapted.
Attached is a set of aerobics, hoping to help the landlord.