If your asking how to use a revolver than please take a class. If you bought it from a store the salesperson will likely know of an area class or possibly be able to give you an introduction to firearm safety. Guns are lots of fun and when used properly much safer than riding in a car. BUT all guns are designed to put holes in whatever is in front of them when the trigger is pulled. Doesnt matter if its an accident or on purpose. Get some hands on experience with a mentor. Youtube is no place to learn how to use a gun.
Concentrated power is not rendered harmless by the good intentions of those who create it.