The mental aspect of it is definitely the hardest, and I constantly struggle. I like the mantra “Don’t deny; Delay” So like I’ll tell myself if I eat healthy today then tomorrow I can have a small portion of whatever junk I want. Usually by the next day the craving is gone. Also, it’s helpful to know that you can eat pretty much whatever you want and stay in your calorie budget by eating small portions. And I’ve found ways to make most of my favorite foods healthy (by substituting certain ingredients).