I realize that, while there are many people who actually follow the diets and advice of nutritionists and dieticians to lose weight, many others want to lose weight without even trying to do a few weeks of healthy diet and gym . The reasons are many: obesity is an increasingly serious problem in most modern countries, but on the other hand we hear about nutrition and its opposite. Going on a diet is seen by many as a waste of time, not to mention those who say that by going to the gym they have not lost the desired weight. But what if for once we tried to do things right, really right?What if without going for last-minute remedies, we try to stick to a healthy diet plan, full of natural food, and go to the gym at the same time?

A ‘skeptical’ couple in their mid-fifties put themselves to the test ( source ): in 12 weeks, both had a healthy diet and gym despite being discouraged by previous attempts to lose weight . She ate a little too many sweets and carbohydrates before starting; he didn’t have breakfast and then a sandwich with chips for lunch, roast with various toppings at dinner, and frequent snacks of packaged cakes and biscuits.
You have learned to eat less sweets and more proteins and vegetables; him to have regular meals. Both went to the gym while working full time , but found a way to attend it 3/4 times a week with an hour of weight training (half an hour) and aerobics (half an hour).

The results of a healthy diet and gym are not long in coming: both have lost two sizes in three months, so about ten kilos. You have lost the desire to eat sweets and chips; he found that by eating healthily, with fruits, vegetables and protein plus whole-grain carbohydrates, she didn’t feel the same hunger. In both the belly has shrunk a lot.
His prominent stomach is gone. You have lost a lot of belly fat.
Moral of the story: before saying that a healthy diet and gym are not the solution for you, give it a try. 
Try to be regular in both things and give yourself time. There are no mind-blowing results in two weeks. But if instead of looking for miracles, you put in the effort,you would find that three months is not a big time investment.
In three months you could have a new body, while now you are just wasting time and perhaps the solution eludes you for the simple reason that miracles, unfortunately, do not exist.