Living a fit lifestyle isn't about strict guidelines or endless sacrifice. You should be eating eat lean meats, nutrient-dense veggies, unprocessed grains, and healthy fats. Breakfast, your most important meal of the day, studies show that what you eat for breakfast can program what your metabolism will use for fuel the rest of the day. So if you wake up in the morning and have a bunch of carbs, your body will use carbs for fuel the whole day instead of your own fat.
If you wake up in the morning and have good fats combined with lean protein, you'll actually use more body fat for fuel throughout the day. Don't be afraid to eat fat. It's definitely not a bad thing, especially when it's paired with a smaller amount of carbs.