helping my girlfriend become an extremely cruel mistress:D

I recently shared my sexual kinks with my partner, and she reacted much more openly than I expected. Right now, I’m teaching her how to act as a mistress (since I really enjoy being the submissive). She’s grasping it gradually but finds it slightly challenging because I asked for EXTREME CRUELTY!!! However, my wishes are coming true:D Does anyone have advice on helping my partner become an extremely cruel mistress who wouldn’t hesitate to give me several whips just for the sake of it…?:p