Cheat days?

I am here starting my diet today and just wondering how i can keep this up and heard some guys mention that they have cheat days. My goal is not to have any days like that for at least 8 weeks, but in case the food i am eating drives me crazy, can someone explain exactly what a cheat day onsist of, like how much over the go in things like fat and carbs. I am on a cutting diet right now. and here is what i am aming for, for the next 12 weeks.
Diet
Stats 26 yrs old, 5’6” and 150lbs and just to be on safe side, 10% bf
-Cardio 45 min, 1hr before meal #1
Meal #1 9:00 AM
4 egg whites, 4 whole eggs
48g protein, 18g fat, 2g carbs
Meal #2 11:00AM
2 scoop protein shake w/ flax
46g protein, 14g fat, 0g carbs
Meal #3 12:30PM
1 chicken breast (6-8 oz) w/ mayo and broccoli
38g protein, 12g fat, 6g carbs
Meal #4 4:00PM
1 can of tuna w/ mayo and celery
37.5g protein, 15g fat, 6g carbs
-Workout
Meal #5 Right after workout
2 scoop PWO shake w/ dextrose
46g protein, 0g fat, 80g carbs
Meal # 6
Protein meal (about 6-8 oz of steak, beef, or chicken) and ½ cup rice, 1 Glucorell capsul before meal
37g protein, 4g fat, 22g carbs
Meal #7
1 scoop protein shake w/ flax
Will try and substitute with actual food if have time.
23g protein, 14g fat, 0g carbs
Total = 275.5g protein, 60g fat, 130g carbs