As I've studied a number of different arts over the years, as well as taught for a number of years, I have to say that (as already stated) the best plans are to change mind with body and become dedicated to a style that suits you, or improve your overall health, weight-lifting, and aerobic training, especially running abilities.
In any confrontation, there are too many variables to consider. I've taught self-defense classes for over 20 hours based on a single (and very limited) technique to point out that ATTITUDE and AVOIDANCE are the best weapons you have, and they both must be in place before the threat is present.
If you're dedicated, and you want to join a school, and you want to be dedicated... don't search for a school. Search for an instructor or instructors. Meet with them, talk to them, find out what their viewpoints are about different subjects including CCW and the famous "Rules of Engagement." See what they know. Know what they care about.
You will get more from a teacher that you see eye-to-eye with in a limited school / art, than you will from a teacher that you don't agree with in a school that can teach you anything and everything you've ever dreamed of.
I hope this was helpful. I have seen dozens and dozens of students not like a class until they got the chance to hang out and talk with me, then things changed. They either got along with me, or I suggested that they may want to find another teacher that would better suit their needs and views.
Don't be dismayed, and good luck!
