I also think you should first get comfortable shooting and handling a weapon. Loading ammunition. Your basic stance; being comfortable in your breathing. Learn to shoot at targets at shorter distance until you hit the bulls eye! Let your confidence grow. If you have got a good grouping in center, you can push yourself to shoot accurate at a faster paste. Try shooting while moving – that might be pretty important in real life shootout. Safety being the most important, in the beginning. Clean the weapons (love the smell of gun oil) I would also go for Close quarter combat training. Learn the basic disarm, shooting at night/with the lights off indoor shooting range. Go to shooting range with experienced people.