feel exhausted?

That's not a problem. Whatever point in your life you are, drDukan diet is a little shock for your body. First phase is suppose to be a surprise for the organism, but cheer up! It's only 1-7 days for the beggining. In my case it's 5 days. According to drDukan dieting philosophy, first phase should last:

1 day - if you want to lose 5kg;
3 days - if you want to lose 5-10kg;
5 days - if you want to lose 10-20kg;
7 days - if you want to lose more than 20kg.


These days are so special for you diet, because they are preparing you for a new style of food.
You may feel weak and hungry, unfortunately, we all are used to eat too much - so this is normal process of getting usedd to new type of food.
Don't make excuses, YOU ARE NOT ALLOWED TO EAT SWEETS, even to use sugar!
(only sweeteners if needed to recipes)
You should use this time to learn some simple recipes, fill your fridge with 72 high protein products.

here are some of them:
you can eat these products when you feel hungry!

Meat and offal
Beef steak
Fillet of beef
Sirloin steak
Roast beef
Rump steak
Veal escalope
Veal chop
Kidney
Calf's liver
Pre-cooked ham slices (without any fat or rind)
Rabbit/hare

Fish
Cod (fresh)
Crab/ocean sticks (surimi)
Dab/lemon sole
Dover sole
Grey mullet
Haddock
Hake
Halibut
Herring
Mackerel
Salmon
Smoked salmon
Sardines
Sea bream
Skate
Tuna
Seafood

Poultry
Chicken
Pigeon
Quail
Turkey

Eggs
Non-fat dairy products
Non-fat cottage cheese
Non-fat fromage frais
Non-fat,Greek yoghurt
Non-fat quark/non-fat yoghurt (plain or flavoured with aspartame)
Skimmed milk