You're also not going to get the nutrition you would from a home-made meal. Long story short, your convenience is costing you your health. That's why it's always better to make your own sauce. You'll eat a much healthier meal, you won't add all the salt, sugar and fat, and you know exactly what you're eating.
A peer is someone who is the same age as you, and they do not have to even know you. You might be friends, you might not. They might be a student that's in the same grade as you.
basically, a peer is a student that is around your age.