Despite my every endeavour, my weight started to creep up, no matter what I did. I was constantly calorie counting and controlling what I ate without any effect.
Just after the menopause, I was made redundant into early retirement. DH and I bought a large neglected house and garden. I was on my feet gardening, decorating and walking the local area to get to know it, for up to 8 hours a day, still monitoring everything I ate, and still the weight crept on until my weight was up 2 stone.
My weight stayed at that higher level for about 10 years, despite me even trying fad diets without effect. Then in 2014 Michael Mosely introduced the intermittent fasting 5:2 diet.
I went on it and in4 months I lost the whole 2 stone and in the 8 years since then my weight has stayed stable. I still do the one day a week fasting, it is so automatic, I never feel hungry on that day.
Coastpath with any diet, at any age, you put the weight on you need to lose because you have developed eating patterns that are conducive to weight gain. If you manage to lose that weight with a changed eating pattern, common sense should surely tell you that to are unlikely to keep that weight off if you return to the eating pattern that put the weight on in the first place. Once you get the eating pattern/stable weight balance right, you should be able to not need to be so alert to your weight all the time.