You must realize that losing weight is a multi-stage and lenthy process.
The point is not to lose a lot of weight quickly, but to lose weight permanently.
So it's better to move in small steps, gradually changing your eating habits. The most beneficial to health is to lose half a kilogram per week. So if you want to lose 10 kg, slimming should last from 2.5 to 3 months. You have to spend as much on getting out of a diet as important as losing weight. Some tips on losing weight can be found here
http://bit.ly/xopinie A healthy diet consists of a variety of products. It must contain fruit and vegetables, but also meat (both white, poultry and red - the source of the most absorbable iron). The body also needs carbohydrates and even some fat. But the most important is protein. When losing weight, we need to provide it with an unusually large amount so that the body does not draw energy from burning muscle cells. We need approx. 1 g of protein per 1 kg of body weight. The ideal fat diet should come from 30 percent. calories, from protein - 15 percent, from carbohydrates - 55 percent (whole grains - vegetables, legumes, whole grain bread, brown rice and pasta, cereal). Figuratively speaking: half of the dinner dish is vegetables, 1/4 - meat or fish, the rest - cereal products.
Further reading
https://www.ncbi.nlm.nih.gov/books/NBK221839/