Welcome to the forum Salley as you say you are not and I presume never a JW is that right.?
Shunning of any family member who has been baptized whether it is for leaving the religion or talking against the beliefs of the religion no matter how old you were when you were baptized 8-10 years old the same penalty applies .You are ostracized until you go through normally a year of grovelling to the elders in how repentant you are of your sin in questioning the Governing Body or committing some sin as smoking cigarettes .
Suicide ? I have known a few who have committed suicide because of this religion and I will leave it up to others to fill you in on this sad aspect as I have been out more than 25 years now.