It is not so important to make the face white, but if we make our hearts white (lit up with noor ) is the best.
Pray 5 times. You will wash your face 5 time. So there will be no pollution & Namaz will bring beauty to you.
Good habits & try to be good in studies. This will give everlasting respect. And keep away from envy and anger because if a person is happy from inside then its face is also shining and joyful.