DISCLAIMER: I really do not want to make it seem like I'm "giving advice" as every person is different. My experiences were quite different than C.Shelton's or Leah Remini's, but I think all of them are equally valid. I can only speak about my own experiences and they will in no way be universal or applicable for all people.
I spoke with a therapist who had quite some experience with the moonies some buddhist and hindu cults and also JWs, but not with scn. We had very good rapport and "ARC" so to speak.
What the therapist was telling me was true and legit, but I didn't feel like I'm learning anything new. My replies were a constant barrage of: "Well duh!", "Yeah, tell me about it!" and "I know, right?"
I ended up feeling like the money is better spent on education and time is better spent on looking for a job.
I think the reason was that by the time I decided to defect, I was so f-ing-done with the cult and its bullshit. I spend my final 1.5 years in the SO thinking if I should defect, try to participate in some coup or go out in some sort of "Luther's 95 theses" Debbie-Cook-letter-esque protest. I very thoroughly analyzed all the possibilities and scenarios in my head, while coming up with several different defection plans. In some sense, I did a lot of de-programming while still inside. Once I was out, I had absolutely no desire to do independent scn or anything like that. I was done with it all.
Also, I was a thought-police officer. That's a different can of worms separate from the usual cult nonsense,
Looking back I feel like I would have benefited more if I could have a chat with an ex-North Korean investigator or an ex-KGB agent over a beer than having a session with a therapist.
But again, I stress that this is specific to me alone and will not be the same for everyone.