30 to 40 pounds is devil training. I don't know if you can stand it. Excessive exercise will lead to your collapse and weakness. My plan to lose weight 10 kg a month is this: before drinking water at 6 am, I take out 500ml of water and run. If there is a gym, it is best to run 5-6km in 40-60 minutes and replenish water halfway. Take a rest after running 1 hour to eat, eat more fruits, vegetables and eggs, and don't eat oil, milk or meat. Lunch is less oily, less fat and more vegetables. Start running at 6 o'clock in the evening, bring water, run 5-6 kilometers in 40-60 minutes, and replenish water halfway. After running, rest for 2 hours to eat, and the standard of eating is the same: less oil and less meat, less boiled vegetables and fruits. As long as you insist on it, there is absolutely no problem, and you will start to rest on time at night 10. Only when you have a good rest can you exercise well. According to this method, some people complete 15 kg per month, while others complete 15kg per month. It's up to you.