Thalia
That is actually a really good idea. Self-defense classes. I can see about getting you guys a permit.
Since you're a minor, you'd probably need an adult to supervise. I can do that, as it would be something I'd definitely want to be involved at. I can even teach a couple of classes, if you'd like.
As for a space, there's a little space in the sheriff's department that could be suitable. Or you could use the park.