Yes, but you must insist that the treadmill you use must be strong enough to withstand about 120kg, so that you can run stably on it. In addition, we must ensure the exercise time, at least 20 minutes at a time, and we can run alternately at high and low speeds, with better results. You can also exercise on the treadmill according to the preset weight loss plan. Find the intensity and way of exercise that suits you, and stick to it, and it will be effective. I used to be in the same situation as you. Later, I bought an Aurora treadmill to exercise, and someone gave me private lessons. These are all learned in private courses, which are targeted and effective.