@TiaWuv2 Hi, sorry for the delay. I'm in the middle of exams at university and haven't been able to reply. Here's my proposal; if you'd like, I can send you some examples, but basically it would be this: The training could take place while she's trying to resynchronize with her own body. Especially since at the end of the episode, her body reacts on its own when Chat Noir tries to touch the jade, so perhaps there's still some connection between them.
PART 1
I was somewhat inspired by Itadori's training at the beginning of JJK and by Raven learning to control her emotions so her powers don't get out of control.
For example, the jade could function as a kind of guide without needing a teacher. It could create tests or situations that Gwen has to overcome while still in astral form.
One of them could be something similar to Itadori's training: Gwen has to keep her energy stable while watching something that evokes various emotions, like a movie or a scene—in this case, embarrassment now that her body is acting strangely, or perhaps later when Chat "dies" due to the villain's attack in that special. The scenes would evoke different emotions (joy, sadness, anger, surprise, etc.), and each time she loses control, the jade or the Gems would react. The idea would be for Gwen to learn that she doesn't have to stop feeling emotions, but rather learn to control them.
There could also be more comedic tests, such as trying to remain calm while absurd things happen around her, or trying to control a Gem while something distracts her. She might even discover that when she gets too angry or embarrassed, her body reacts from a distance, forcing her to learn to regulate her emotions so she doesn't lose control.
