What's the Difference Between Teeth Whitening & Bleaching, and Which One Should I Go For?

I wanna do something that's convenient that i can do at home

Suggestion:

Whitening is more something you do at home… and over the counter. For bleaching, you have to go through a dentist. Bleaching does last longer but is a little more expensive. If you're looking for something you can do at home, try bleaching trays. The dentist will take an impression of both your top and bottom teeth and make you custom trays. Bleaching solution should be given to you at the time you pick up your trays and in two weeks, you should see quite a difference