Finkelstein's words are spot on, I think - "play along until you can move out on your own when you can. Pretentious as it may be, its really your only choice for now ."
You can prepare to walk through a minefield by learning how others have managed to survive their experience.
Don't tell anyone your specific concerns about the Corporation - especially your parents! Simply tell them that you have personal issues which you are dealing with in prayer, and that you are grateful for their concern.
Rinse & repeat. Stick with this "firewall" and you will give no one anything to pin on you. Give them any "excuses", and the wolves will smell blood - yours!
Never forget - no one can force you to tell them your private & personal thoughts.
If anyone pushes you, (especially the elders) ask them if they'd tell you their deepest & most private thoughts!
I wish you peace and success.