It is much more than a lifestyle choice. It is not as simple as just walking away.
I hope you find someone with the knowledge and experience in dealing with cults.
In the meantime, there are some helpful books out there.
I like the ones written by Bonnie Zieman. (former JW turned psychotherapist)
1) Fading out of the JW Cult: A Memoir
2) Exiting the JW Cult A healing handbook for current and former JW's.
Of course this forum is a great resource as well. Many with experience in leaving a cult!