I have been 'out' for 13 years, and I am still in the healing process. 2 years ago I graduated from nursing school, at age 40, that's how long it took to recover from the 'barefoot and pregnant' mentality of the org.
And I do agree with Joelbear, healing is longer if any close family is still 'in'.
But the sooner one gets started, the better.
Life is a roller coaster. Get in, sit down, shut up and hang on!