Some one like Rangemaster would do you well .Don't worry about the cost it will be worth every penny ! I took a course with J Farnam and it was very obvious that I knew so little !
My CCW goes back a longe time ,40+ years .In those days courses weren't even available and that was frustrating. You're lucky now with many courses available .
A good course will keep you out of trouble .#1 avoidance
You'll do better when properly trained . You'll do better in court as appearing a responsible , trained citizen rather than crazy with a gun.
#1 avoidance is the better than trying to survive a shootout and the subsequent court .
When carrying leave your macho at home.
And Watson , bring your revolver !