The treadmill just started running 1000. If you can't run 1000. Running on the 750 treadmill just now is a little more labor-saving than running on the ground.
So run a little more. My own training method, although others say it is unhealthy. But I think it's quite effective ... or anaerobic exercise. Just for reference, of course. You can only run 800 at first. But I insist on 1000 every time. And when you can run 1000, you can run 1200, that is. Challenge the small limit every time. Although tired, it is not good for your health. But the short-term effect is great. Tired, too.
As for the rest ... I suggest you practice yoga. The gym also teaches aerobic exercise. It is good for girls to pursue figure.
The most important thing is to pay attention to nutrition. Your current weight is relative to your height. It belongs to malnutrition. Thin. Eat more food with protein. Recommend beef. Followed by mutton. Pork is also ok. You must eat more vegetables. 2 mouthfuls of vegetables, 1 mouth of meat.
There must be a good timetable. Go to bed at 9 o'clock or 10.
From half past six to seven. Sit less. Walk more.
This is what women should pay attention to when they pursue their figure.