Hi and welcome to the site. You may want to post your question about sub management to the Dominant forum where you will get more replies (a lot more people read that than most introductions).

One thing that strikes me about your sub is that her disobedience could be linked to an attempt to Top from the bottom - she is misbehaving to get attention and play. Do you always punish with caning or other CP? If so, chances are that she actually enjoys this and therefore does not see it as a punishment. You need to think of punishments that are not fun for her so she avoids the undesired behaviours. You might want to think about:

- Cum restriction (a day, a week, a month without the right to have an orgasm)
- ignorance (she has to face the wall and be queit for 5/10/15/20 minutes)
- Some tedious and mind numbing task that you don't want to do but which she can still manage with her condition

I would also suggest something like writing lines or writing an essay on why what she did was bad but that depends on how much you think she can write with her condition. Basically, anything tedious and boring which discourages her from misbehaving.

The counter to this is, of course, the carrot... you leave any activities she enjoys for when she behaves, this includes your previously mentioned activities of CP and bondage.

If you haven't already, I suggest you do a BDSM checklist with her and see exactly which activities she enjoys and which she does not. Using one of these means you almost immediately get a list of hard limits, a list of soft limits and also a list of possible punishments and rewards. You may also get some ideas for activities which you had not thought of previously.