Count your calories and stay half happy and lean. But if you want to be completely happy, then to hell with these calories and, accordingly, a slim figure.
There are no mono-diets on sweet and starchy foods, since confectionery products are quite poor in nutrients, while rich in fats and sugars, which supply the bulk of calories to the body. The principle of losing weight is actually obscenely simple - you need to burn more calories than you eat. In one snickers-type chocolate bar, for example, about an hour of brisk walking. At the same time, if the body lacks proteins and vitamins with microelements, then the consumed fats and carbohydrates are not used, but deposited.
And in general, sweet is always simple sugars, mainly glucose. Passion for glucose leads to the development of metabolic syndrome, insulin resistance, diabetes mellitus.
And where do you plan to get protein, fiber, vitamins, in the end? Of course, you can only eat sweets in small quantities in order to get fewer calories than you spend, but, firstly, the portions on such a diet will be small, and you will feel hungry (which will not help losing weight at all), and secondly , all excess sugar will be very bad for your teeth, and cholesterol will destroy blood vessels.