I know it has worked very well for me. I left the jw's. I wasn't disfellowshipped, just didn't agree and left. So now I don't need to worry about those pesky family functions or seeing my parents because they can't speak to me. I also don't need to run back and forth taking my children to spend time with their grandparents. My parents are both getting older and have many medical problems but I don't need to spend a lot of time worrying about them because they have already decided to follow the jw rules and simply allow themselves to die rather than accept life saving treatment. And if something should happen to them I won't need to miss work to attend the funeral because I am not welcome there.
Can you see where I am coming from here ? Shunning in any form is a hateful, unloving, unchristian practice. It tears families and friendships apart and is certainly not brotherly love in any way. If it is intended to "punish" me...then for what ? I have been accused of no wrongdoing. If they intend to shame me and make me beg to be allowed to return...I have no reason to be ashamed...and why would I want to return to an organization that I don't believe in and that treats people in such a cold, heartless manner.
Excommunication is NOT Good !!!!!!
***Also you called the jw conducting your study "your teacher". This is a very long stretch at best. jw's are encouraged NOT to continue their education past high school so their qualifications as a teacher are really very "iffy". They really don't "teach" it is much more like repeating a well rehearsed script.