How to lose weight

What does "strict to diet" mean to you?

The only thing necessary for weight loss is to eat fewer calories than we burn. We burn calories just being alive, more calories doing daily life stuff like job and home chores, plus a few more calories if we do some intentional exercise.

Eat less than that, lose weight. Eat a small amount less than that, lose weight slowly. Eat a big amount less than that, lose weight fast.

If you don't want to be more strict than absolutely essential, go with losing weight slowly. (Fast weight loss is a trap, anyway; often a mistake to shoot for.)

Eat foods you enjoy that add up to the right number of calories, that keep you full and happy most of the time. Ideally, they'd also add up to reasonable overall nutrition.

If possible, increase movement in your life in practical ways. That might mean more daily life movement, that "park further from the door" and "take the stairs" kind of stuff. In addition, it might mean adding some exercise. Any added exercise should ideally be fun (at least tolerable) and manageably challenging, not punitive and extreme. If you want to exercise more, build up gradually with frequency, duration, and intensity.

To lose weight, we're going to need to change some routine habits, certainly. But it doesn't necessarily need to be miserable or extreme.

On the food side of things, I did this:

On the exercise side of things, I experimented until I found something(s) I enjoyed doing, and did it in ways that fit into my life with good overall life balance, i.e., enough time and energy left for job, chores, family, social life and anything else important to me.

Is that strict? I didn't find it so, but I don't know what your definition of "strict" is. You're the only one who can think through what that means for you, and make your plan accordingly.

Best wishes: IME, reaching a healthy weight (and reasonable fitness) and staying there delivers quality of life improvements way beyond the effort it takes to accomplish.

Vague.

Simply eat satiating meals that will naturally make you crave less.