What do you think i should do to get my teeth white?

There are: Dozens of whitening products available both commercially and professionally. Depending on the degree of whiteness desired, your choices are over the counter - whitestrips etc or professionally through your dentist - chair side immediate power bleaching or via custom trays. Seeing a dentist is the best and safest way but probably also the most expensive. Hope this helps.

Flouride: Helps build the enamel. Healthy and strong enamel protects teeth and cannot absorb stain easily. Visit your dentist. If your teeth have crazing and absorbed color, veneers cannot only make your smile gorgeous (pick the hollywood white), but can restore the structure lost on your teeth.