Lose some pounds for the first day of school? HEEELLLLPPPP!?

Hey. so this summer ive gained about 30 pounds :( . at the begining of 7th grade i was 190. now im 220. school starts in 8 days and i want to go back to 190. i know its not possible to lose all that in 8 days but when school starts i will be walking about a mile everyday from the bus stop plus gym every other day. so this is what im eating all week: a chobani greek yogurt and special k cereal, a light salad for lunch with little dressing, a serving size of cheetos puffs as a snack, 1 apple or orange, a macaroni cheese microwave dinner. for exercise: walking maybe 6 miles a day, and some cardio 3 days a week. so i was wondering, is this healthy? is my diet okay? i really want to lose weight this year because of my health. please help me, thanks. oh and im going into 8th grade, 5 foot 3.5 inches is my height.Lose some pounds for the first day of school? HEEELLLLPPPP!?
I wouldn't have the cheeto puffs as a snack, they have a lot of calories and are fattening, so they won't help you get to your desired weight. However if you do want a mid-day snack, try having a banana. They always keep me from being hungry for a while, and I feel a lot more energetic after having one. They are a good every day snack. The greek yogurt and special k are both very good for you, so they are good to have for breakfast. The mac-n-cheese will be okay, but I would have something more on the line of vegetables, because the cheese is although giving you protein, but it is also not the best for you. Maybe broccoli, corn, carrots, or soup would be good. You can lose lots of weight becoming a vegetarian too. I am a vegetarian, and I started back in January. I have lost about 20 pounds. Don't cut protein out of Your diet though. You are still growing, so therefore you should still be eating eggs, drinking lost of milk, ETC.. I am also eating healthy, exercising everyday, and getting good support from my family and friends. You running 6 miles a day, that is more then what I do in a day, but it should definitely help you lose the weight faster. Drinking lots of water can also help a lot. It gives you a little water weight, but you just pee it out. (I know it sounds funny, but its true!:) This diet is definitely healthy for an eighth grader. Hope this Helps!(: