Eat healthy. Do sports. Sleep well. Repeat.
Everyone’s path is a little different. What is only a little difficult for some might be downright impossible for others (or feel that way).
General advice that would work for 95% of people shouldn't be criticised because it doesn't address the other 5%. If people did it then there'd be far more money in the system to pay for usefully targetted specialist treatment for those people.
The emotional/psychological side is important, because the person must make long term changes in their lifestyle.
People tend to over-eat for a reason, and typically it is a reaction to stress or some emotional/psychological need which isn’t being met.
There’s a book called “The Carbohydrate Addict’s Diet” which promotes intermittent fasting to lose weight, and I think it’s on the right track, although the book recommends taking in calories only during a one hour period each day, which for me was too extreme.
I do think it’s beneficial to fast for at least 6 hours once a day, if possible. It’s good for your blood sugar as well as your gut. It can give you more energy and help you feel more like exercising.