If you just want to stop having the dream, you can try programing yourself to wake up from it before you run away from the school. This ought to let you remember more of what actually transpires in the main dream.

Also, by interrupting it, you ought to have a sense of where it's going in those initial moments of wakefulness.

It feels more like a content than a process dream. I'd be really surprised if it turned out to be about your progress in therapy, if that's what you mean. There's nothing in it that points to you--you seem more to be passing thru.