However, glycogen is consumed before aerobic exercise 15-20 minutes, and fat is consumed after 30-40 minutes, so it is best to exercise for 40-60 minutes if you have time. If there is too much abdominal fat, you can do aerobic training for 40 minutes every day, and then do abdominal training, such as doing supine belly rolls and leg lifts in situ, which does not require fast speed, but requires enough training time. Combined with healthy diet, the effect is immediate.
Abdominal muscle reference video: /v_show/id_XNTY5MDk5MTg0.html
Finally, eat well in the morning so that you can have energy this day. You can eat better at noon to ensure balanced nutrition, but eat less at night and try not to eat greasy food, especially when you are just starting to exercise.
I wish you success!