I agree that a dramatic change is very difficult and the level of difficulty varies from person to person. However, obesity is probably one of the worst long term health predictors. If it leads to diabetes, almost all outcomes get much worse. The change is worth the difficulty.
For me, I quantified what I was eating and simply reduced it a bit by careful tracking. I also did quite a bit of relatively low heart rate exercise and did do some shift of the calories away from carbs. I also identified some intake that was purely habit and not sustaining, like late evening snacks, and eliminated or modified those. Lost 35 pounds in a few months. It may take a while, but the math works over time. It is relatively simple, but it is not easy. I kind of turned it into a game and that helped a bit. At any rate, I wish anyone who decides to try the best of luck.
