Buddhism is not a belief

If you do nothing else than study Buddhism this will only remain a hobby and a belief. This, is very conflicting because Buddhism is used to one self reality understanding. Making these notions your own that is precisely what prevents from understanding reality.
You must not "believe", otherwise it is just like being blind. If you do not see and that you walk just where you are told, you can walk into a hole. it is very important to know exactly where you are going.
You have to "see" to get your self understanding. "Understanding" is the main point in Buddhism. To do so, you especially have to observe, to be careful to what you do, to your circle and to practice to be as fair, honest and generous as possible.