i would love to loose 4 kilos

Hello Maya,
Your weight is fine for your height. Your BMI is 20.3. I don't know wich kind of efforts you are investing, but maybe your body feels OK at this weight and thats why you are having problems loosing it. IN general I suggest a diet rich with whole grains, vegetables, fruit, low fat dairy, legumes, fish, poultry and unsaturated fats such us olive oil, canola oil, avocado, nuts, tahina ect. You should also cut back on fried foods and sweets. You can choose any kind of sports you like, so that you can enjoy doing it regurarly. For example: walking, joging, swimming, spining.
Good luck
Monica Keren