You're doing a good thing in being cautious. And you're right about the possible consequences, depending a lot on the situation and where you live. As has been said, "you may have killed him in self-defense, but by the time the lawyers and the media get through with you, you might wish you'd let him kill you instead."
Most CCW classes are little 1 or 2 day affairs that focus on situational awareness, legal concerns, state laws and so on. They typically include a demonstration of your shooting skill, like putting 4 out of 5 shots in a 10" circle at 25 feet, or something like that. They don't really get into "how to shoot" techniques, like how to spin around to one side or the other and shoot, how to reload quickly, etc. A CCW permit class is NOT "combat training."
So after getting your CCW permit, look around for more specific training. Your CCW instructor and/or local gun shops will probably know of some. Also check your indoor shooting ranges - people working in there usually know about it, and often have bulletin boards, batches of business cards, etc. from people offering such training.
- Ruark
This is my situation exactly.
I have my ccw and a lot of general firarm usage(and safety also),
But I have zero "real life" combat type of traning.
Which I plan on taking this coming spring/summer.