Go for 0.8-1g of protein per pound of lean mass and 0.4g of fat per pound of lean mass. After that fill your calories with whatever, carbs, or more fats and...
Bananas are a way better option then cereal foods, in my opinion. MUCH more satiating. It doesn't matter where you get your carbs from, carbs are carbs, just like calories are calories. You could...
If that's you in your avy, which i'm assuming it is, you have a pretty awesome physique for 16 years old man, that's impressive. You'll put on less fat then a regular person...
A cheat day once a week? That's crazy. 1/7 of the time you're not even dieting. You can easily ruin a week or more of hard work with a single cheat day.
It's 100% based on how much body fat you have. The more body fat you have, the larger deficit you can handle. I've been eating below my bmr for months, with zero strength loss.