You are 13 and weigh 9 stone you need to lose a stone by the summer how can you do this?

Okay, so your ideal calories you should be 1200 calories a day. Try 1000 calories a day? You could try this diet plan-

Breakfast:

1 pint of fresh Orange Juice and 2 slices of toasted wholemeal bread with tomatoes(no butter)

Snack:

Low fat yogurt

Lunch:

tuna sandwich with wholemeal bread(no butter)

Snack:

Walkers low fat crisps

Dinner:

roast dinner with lots of veg

Evening:

Low fat Hot Chocolate

Exercise:

30 minute jog every day

you should loose about 2-4lbs in a week

good luck!:)