Yep, the miracle is that your body already produces these hormones. The body can adapt quickly into a new healthier equilibrium and keep on trucking almost like nothing ever happened (talking like within less than a year). Losing some fat can be nice, but that's missing the point. Insulin resistance is the fundamental problem, and the cure for most is a set of fairly trivial changes to diet and lifestyle.

Eat less overall, fill up on fiber, take short walks after meals, and lift some (modest) weights to bring down glucose even quicker. You can even check your A1C at home with a finger prick in 5 minutes for little to no cost. Check it a few times a year, and you're set. The most significant dietary change is cutting carbs, and quite frankly most of the food to blame is bland garbage anyway. Nobody is even taking that food away. Just eat less of it, if you really must, and get a grip!