Welcome, roxanesophia!
Like you I was a "bible study" but have now been promoted to "bad association" because I "failed to progress"
Ah well.
My question is how do i tell a zealous study conductor that I want to stop studying if "Satan" is the answer to everything
I'd bear in mind that the apparent affection and kindness they show, and the time they've given you is all recorded as "service" for which they get credit; it's hardly a personal favour of any kind. Your study conductor is zealous because of her beliefs and position in the cong, rather than because of any bond between you.
So, either of two ways - politely say that this will be the last study because you need to "consider prayerfully" on your own for now, or
Ask enough difficult questions that she will want to terminate. There is plenty of material here and on jwfacts if you prefer this course.
If she overplays the "Satan" card - just play along until it gets ridiculous even to her. Did satan make the wt redefine "generation" 5 times? Where was Jesus at the time? Did satan create so many animal and insect species that there's no way at all they could fit on the Ark? Can satan keep God from getting through to you?
Good luck, and kudos for being too honest to go out in "service" - because that's what it really was. Do your own research, and keep in touch!
Retro