Low carb diet helped me with this. Calories in calories out, but if you have a lot of carbs you are going to get hungry when restricting the calories, whereas on a low carb diet I sometimes have to think hard as to whether I have had breakfast or not by 10am. Having woke up at 7am. "Oh I should probably eat something..."

I think I have less than 50g of carbs a day, and probably 1500 calories but I don't track it too closely. I also do strength, but a little each day and make it incidental. I might play with the TRX or do a few pull up or dips at the park while the dogs are off leash.

Something that makes it easier is there are low carb treats and drinks. It does mean taking in more alcohol (as in chemically an alcohol, not ethanol) based sweeteners, so I worry about that a little.

For someone who doesn't go out much this is easy, but in your younger years with social pressure it might take a lot of will power, and even changing your friends and breaking up with partners and so forth to support this kind of habit, since it goes counter to the average person's culture in the west. Especially quitting alcohol too.