It is unlikely that it will work by force. No wonder you have resistance. There are reasons that have definite justification. But only a specialist can understand this. In addition, you need to understand the reasons for being overweight, something with personal boundaries is possible. This can be understood through metaphysics. And your soul resists, because it understands that even after losing weight, you will not solve your main problem. Therefore, listening to general advice is not effective. You need an individual approach, because you are unique and the situation is unique. This means that the solution strategy will also be unique.
You can try to interest yourself in physical activity. But not "for the buns" - ie. "I'll eat candy after class", "I'll buy something beautiful", but in a natural way.
Sport brings pleasure, as far as I remember the mechanisms, quite at the expense of internal resources - the release of endorphins.
You go somewhere where it is interesting, and sport is not the central link // be then playing frisbee or badminton with a company, roller rink, skating rink, etc. You joyfully strain your muscles // just not to the state of immobility of the bodies, because in the morning they will hurt like hell and this will slow down the desire to practice //. The next morning you start doing exercises - a simple one, for 10 minutes. You appreciate the pleasant fatigue in the muscles.
That's it, you are ready to go to cardio training. In theory, some interest in feeling cheerful, mild euphoria and pleasant fatigue will be.
Useful advice: reduce the sugar content in the diet and / or increase the proportion of chromium-containing foods. There will be no terrible lethargy that provokes hypodynamia. And increase the proportion of foods containing the amino acid tryptophan, which is involved in the production of serotonin: milk, mushrooms, some cereals, nuts.
Feeling more cheerful and content than before can also be involuntarily associated with sports. Dexterity of motivation and no fraud.
In addition, a decrease in the proportion of sugar and an increase in it in complex carbohydrates and protein will result in a correction of nutrition. Also a plus. In terms of weight loss, you can't do without it. It is not necessary to go on a diet, but it is necessary to adjust the BJU ratio.
In one of the films about Arnold Schwarzenegger, I heard the phrase "before you do something, think about whether it will bring you closer to your goal, or vice versa, away from it." It seems to me that this works if you clearly define your goal in your head and are sufficiently motivated. In terms of your question, motivation is also a very important aspect. It might be worth finding someone whose experience will inspire and inspire you. Support from friends and family is also important. For example, you can ask them to keep an eye on how you don't eat anything extra. For example, I defiantly declare my intentions to my friends, and if I tell my friends that I do not eat sweets, but I continue to do it myself, I will feel like a hypocrite and a liar. And yes, do not make excuses to yourself or someone else, if you have deviated from the goal, then admit it right away, this is the only way to get on your path again.