Hi, i have an exam this year and i got weight. i can't do exercises fluently. how can i lose weight?

If your doc is ok: w/you doing brisk walking 20-30 minutes daily do that. Also,see Mark Hyman's book "The Blood Sugar Solution." Peace and good health.

Calories in vs out.: Eat healthfully. Try to eat at least 5 servings of vegetables & 4 of fruit per day. Increase nutritional fiber. Avoid refined sugar & junk carbohydrates. Avoid alcohol, sweetened juices, soda & caffeinated beverages. Aim for 7.5 to 8 hrs of sleep / night. Hydrate w at least 64 oz of water / day. Calories burned must > calories consumed. Do both cardio & weight training.