My suggestion is to take three classes: a basic class, a carry class and a defensive class.
All of your questions will be answered, and you will get more information that you don't appear to know you need, as well as some valuable practice.
I do not believe one can be taught to carry a weapon well over the internet.
There are too many hidden questions (public restrooms) and questions specific to weapons (the Serpa is a good example).
"Huh?" --Jammer Six, 1998