Here's my situation: I've always been interested in learning self defence, and an old book I bought on the subject mentioned Ki in the section on "Aiki." But it's really boring in places and I haven't gotten through it all (the Aiki stuff was in the back). Then these discussions came up and rekindled my interest.
I tried to take Tae Kwon Do once, but it was a load of BS. All it was was running around a room in circles with little kids. There was nothing on the mental aspects, and almost nothing on proper technique. Well, there really wasn't anything.
So, what I wanna know is, if I'm going to get into this, do you have any advice for how to get a good school that will involve Ki, or at least some kind of mental aspect. I can get my exercise another way, but apparently studying martial arts is supposed to give you discipline and confidence. What should I look for to get that, and avoid wasting time or learning a wrong way of doing things?
Basically, do you have any adivce in picking a good school, and on which styles should be prefered? Right now I live in a big city, so I should be able to have some choice. But personally, I'm about to leave for university and I don't know where, so who knows what my options will be then.
Any adivce would be welcome.
Edit:
P.S.
What's the deal with only being able to do positive or negative Ki? This is just mastery of +ve or -ve, but it still seems strange one would exclude the other. Nothing else in life seems to work that way. And if this is true, can one ever "switch"?