I don't know where the figure of 50 kg in 220 days comes from, but I still have some experience in slimming. In theory, if you want to lose weight quickly, you must pay attention to scientific methods, otherwise the rebound will be small and the damage will be great. In view of your work and rest time, I now give you the following suggestions: diet-1,eat regularly, but eat one or two fruits during breaks, 2, eat regularly, and gradually reduce your food intake, reducing it to 80% of the normal level in the first week and 50% of the normal diet in the second month. Don't make excuses for yourself from the day you decide to lose weight, otherwise you won't lose weight. Three days of fishing and two days of drying nets will accomplish nothing. The exercise doesn't need to be too intense at first. In the first month, I have to walk 5 kilometers every day and gradually speed up. If you feel unwell, reduce it as appropriate. If you don't usually exercise, you can take your time. If you are healthy in the second month, you can consider walking and jogging, which is still about 5 kilometers a day. Because I can't communicate face to face with the landlord, I can only give the above three general directions. If you can abide by them, I believe you will see the effect soon.