I gained a lot of weight during puberty, coupled with a less healthy diet in my youth. I suspect many folks are in the same boat - by the time they realize they need to eat/exercise, it's too late. Their metabolic system has been compromised by either diet, hormones, genetics, whatever.
In four months on a GLP-1, I've dropped about 18kg and since I coupled resistance training, I've increased on various strength parameters. The sudden reduction in weight has benefited my activity level substantially. There tends to be two classes of folks - those who need to stay on this drug forever and those who don't - I'm hoping in the end I fall into the don't, but I'm going to let the data from my continuous glucose monitor decide that.
I highly recommend the book "Ozempic Revolution" if you're considering the pros/cons of this path.
I do want to be clear to anyone reading: there is no "too late". One's system does not become somehow damaged at some cliff of weight and eating habits. It doesn't become irreparably meaningfully physically more difficult to lose weight. What can happen is a shift in many systems that effectively make one feel hungry all the time and psychologically react very strongly to those hunger cues, which makes people eat more. Outside rare circumstances, if you eat less, you will lose weight. I do have a lot of compassion for the psychological side of things being extremely difficult, though.
And how did surpressing your hunger via GLP-1 drugs (a pure change to a more healthy diet for you) lead to big changes, if you apparently already had such a healthy diet.
Seems to me your diet was unhealthy for a decade and now isn't.
In his own words, what he noted as being the main contributor to his obesity was the moment to moment urges to just eat something (I empathize with that a lot - I'm also obese). Losing that desire made sticking to good portions and fixed calorie intake windows much easier. He has lost ~50kg of weight in the last year and now walks and bicycles around everywhere for hours every day.
I wish you luck!
The imbalance of fat to muscle leads to insulin resistance. Insulin resistance gets in the way of weight loss. After a long time of trying other means, I decided to directly tackle the insulin resistance problem. And it's been the only thing that's worked.
Sustaining that healthy diet is harder insulin resistance, agreed!
But you said you ate healthy for a decade. To me that's not eating obesity-maintenance level amounts of otherwise healthy foods, but rather eating healthy foods at a normal (say 2500 kcal daily) amount.
In other words, under your statement the behavioral impact of insulin resistance was already overcome, you were eating properly, and still didn't lose weight. And that's just not conform the science, which states that you lose weight even with high insulin resistance, as long as you're eating healthy (i.e. in a caloric deficit vis-a-vis obesity level maintenance).