You can do something as simple as drinking two cups of water before a meal to fill your belly a bit so that you don't overeat, or change up your cheese from dairy to nondairy.
You don't need to stick to tough rules or overnight changes; you need not rely on hardcore discipline that makes you hate your life. You need only focus on progress, not perfection. Lean in to the process of losing weight, and it will happen easily.
I grew up in Doraville, Georgia and I ate barbecued ribs and chicken fried steak, and all kinds of cheesy grits, you know, and I never even thought twice about it.
I missed a tuna-fish sandwich with mayo on toasted wheat bread more than anything. Six months after I went vegan, I snuck into a deli and took one home. And, of course, it wasn't nearly as good as I fantasized. It tasted, well, fishy.
Daniel J. Boorstin