You can't just say these two words. If you can do it yourself at home, the effect is not worse than that of the gym. If you insist on not eating junk food. After you finish exercising here, you will go to KFC, barbecue and drink later. It is better not to exercise. It is very important to have good eating habits. If you can't persist, you don't have to think about it.

Set running time for yourself according to your physique. You can add a little exercise time to yourself every day. Alternating anaerobic exercise can keep fit. Don't be afraid of being tired. Over time, your body will get a lot of benefits from exercise, so you won't feel tired. Hang in there, come on!