Back in the mid nineteen sixties, when my wife and I decided to disassociate....... one would not be shunned. That didn't start until 1980-81 when they wanted to discredit and isolate Ray Franz.......... How did that work out for them?
This is the pattern of the Society over it's history........ especially in the Judge Rutherford & Knorr eras and now with their super hero's....... the GB.
Obedience first, separate and then destroy the reputations of those that leave. It is also the pattern of the Amish, Mormons, Scientologists, and of course the Catholics with their past history of the Inquisition and excommunication.
There are three approaches to an exit.
#1 Do a fade. That door seems closed now. JW's are fools but a lot of them are not.Your mom is on to you.
#2 Go out with a bang, big time letter, a lot of good arguments that will not, in general, move a single JW.
Why? Because this is a club and it's due's paying membership and their good standing counts for more then a non believer's truth.
#3. Move out...... say goodbye to your close family relationships and count yourself lucky because you will no longer be in their pathetic lives or under their influence. I know....... it's Mom and Dad....Sis & Bro...it's been your life....unfortunately if you don't think as they do....... they think less of you.
So you know what's coming. You leave and the shunning begins. Your words will not change anyone because they have not gone through the mental process you have. Until they are deeply hurt by the religion or have the capacity to look at another viewpoint they will not see what you are telling them. Tell them your door is always open to them and say goodbye.
I experienced the opposite......... which led to forty years of shit kicking arguments about doctrines, beliefs and the 'friends' most of whom are now dead, or forgotten or ....never mind......it's all in the wind now.
And Yes I know what it was to be looked up to as a 'Golden Boy'....... a poster child for the WTBT$. But the payoff of fading was Forty years of visiting Mom and my uber JW sister......... forty years of watching everything I said so my wife and son would not be exposed to the ego enforcing JW construct.
Looking back...... I shouldn't have spent the time or effort to change their minds. I should have pursued my education, developed important relationships and a career. I did manage those things but what a waste of time a JW family is. Among most JW's a blood relationship doesn't count on it's own merits.
Living a great life is your only option and it's a hell of a good one.