1. Welcome!
2. Please, PLEASE - Keep your mouth shut!
3. You can't trust cult members, so see step #2 above.
4. Learn to use the word "No." Repeat as necessary, and do NOT offer any explanations. You don't owe them any, no matter how large their sense of entitlement and imaginary authority is.
Q: "Want to study this Tuesday night?" A: "No."
Q: "Want a ride the Sunday Meeting?" A: "No."
Repeat in the mirror until you've got it down. Turn and walk away if in person. If on the phone or email, state "No", then deflect away to another topic or ask them a question about something else to throw them off.
5. DA'ing is playing by this dumbass cult's rules. No need for that. Fading is the safest, most effective way to cut ties with cults.
6. Best of luck to you.