I've known many mentally ill JWs. It's sad because the ones that convert are looking for a coping mechanism, and instead, they just dig themselves in deeper. The bOrg's cycle of guilt/shame/redemption appeals to some people because that's all they know. For the born-ins, that cycle seems normal behavior that they learned from their parents.
One time, years ago, an elder got a book about emotional hygiene (I think, something like that) and really thought it would help several in the congregation. He went to the book store and bought a dozen copies and passed them around. He meant well and the effort was appreciated. This was before it was considered (sorta) okay to get antidepressants. Counseling was usually considered taboo.
The CO found out and was livid. He made him apologize from the stage and collect the books back. It was a disaster because it was a small common sense dent into the crazy wall but he was cut off at the knees.
I think about that a lot - ALL of those people had problems, one ended up in prison, another committed suicide, etc. The brother was not a counselor but he was trying to get them help (and to go for free counseling - none of them had money) but the whole effort was shut down. And that CO, I'm sure he doesn't even remember or care.