Luissa, gun safety cannot be stressed enough, I am a qualified Range safety Officer on Ft Bragg, or at least i used to be.
Chances are that any gun safety course being offered in your area is NRA approved or certified. Ask around at several clubs and dealers, You'll eventually start hearing the same name or place over and over again...That's where you go...
Lesson one: There is no such thing as an unloaded weapon.......
Lesson two-keep your finger off the trigger until you are ready to shoot
Lesson three: If the firearm doesn't have a pin blocker (to keep the firing pin from contacting the shell when the trigger is not pulled back) it may be a good idea to NOT have a shell in the chamber...in case the firearm is dropped.