Welcome, Resistance!
If the situation were reversed and I was the one who had been raised in a high control doomsday group, I would want someone to try and gently show me that there is real freedom beyond the imaginary walls the cult has created and dubbed as “spiritual protection”.
Keep in mind though, not everyone wants that. Some people actually want this kind of religion, they need the structure and to be told what to do. Not to discourage you, as I would do the same thing in your situation. Loosing your religion is scary and really painful. You can plant seeds, but it's up to the individual to wake up. They have to do it. The whole leading a horse to water thing. It's just something to keep in mind and helps a lot with the frustration. You're in a great situation to help someone get out if they want it. What diamondiiz said, that's the key to everything they teach--everything hangs on they're being selected by Jesus. There's lots of info on here for almost anything that comes up in your study. Also check out jwfacts.com and freeminds.org. Glad you found us!