In order to lose weight as soon as possible, you should insist on aerobic exercise every week. Exercise for at least half an hour every day, and gradually increase to one hour every day. Never give up halfway, or fishing for three days and drying the net for two days may not be effective. Even if it has an effect, it is not obvious.
As for what aerobic exercise to do, there is actually no specific designation of what kind of exercise to do, as long as it is related to exercise. You can go running, playing football, hiking and so on. As long as you take the first step of exercise, take an active part and stick to it, you will soon lose weight successfully.