Schedule one indulgent food day a week
This is a day where you can break all your eating rules without feeling guilty at all, so I suggest you give this a try. After strictly observing the dietary principles for 6 days, it is beneficial to indulge appropriately on the 7th day. If you do this, you won't have so much desire to eat so-called junk food when you start a strict diet again, which will help you maintain a reasonable diet in the long term.