I'm a born again Personal-Responsibility Taker. In my view, the most important thing that anyone who leaves an authoritarian religion can do is: Begin to sort out what you can be reasonably expected to take responsibility for in your own life. There is a tendency for people to "hand themselves" over to someone or something else, rather than learn how to cope with their life situation, and then to close their minds to other ways of being in the world or judging other ways of being. Rigidity of thinking is the hallmark of the kind of thinking that flourishes among people be-deviled with mental illness.
I had thought at one time that only the JWs had mental health problems; or that their experience of mental health problems was somehow unique. How wrong I was. As a clinical psychologist working with clients who have severe mental health problems, I have noticed that no religious outlook, whether organized or personal, is spared from mental health problems.