According to my experience, I should try to stay still for the first time on the first day. The number of times you can reach is your current physical limit. Then, you do it every 1 hour, with a rest in the middle. The first day, at least five times as much as the first time. Then there is no doubt that you ache all over the next day. What you need to do now is to bite the bullet. Continue to challenge your physical limits. The number of things to do the next day must not be less than 1 day. You can do it every half hour. Or lie down and do it if you have the strength. Generally speaking, the more you do, the less painful your body is. Do this on the third and fourth days.

So you can stick to the fifth day. If you are a 18~30-year-old young man, I can tell you responsibly that you don't feel any pain today, and you have to keep doing it today, and you have to take off your strength every time.

Five days of devil training is over. Congratulations. On the sixth day, you can do at least three times as many sit-ups as 1 day.