Hi: This singular p oint of view is based on MY experience. It is all I know. Please take it with required salt.
My guess is that your Mother became a Witness in an attempt to make something better of her life. The PHASE probably worked for a time. Unfortunately, children raised in such an environment can suffer a negative delayed reaction as they move on in their own lives.
Perhaps if one would look at their past or present re lationship in the organization also as a necessary GROWTH PHASE in life rather than an issue of right and wrong it would help should we later discover that dedication to a cause can done for reasons other t han simply "pure worship."
We are all at where we are due to events that are seldom current. What has been lost most often can not be recovered. All we have is this moment forward. Until we divorce ourselves from the past, we remain in it.
What I had to learn was three-fold: first, what others think and say about me is not my business; secondly, that "truth" and "lies" are little more than the same color in a different light; and third, that although I may not wish to consider it, I am alone and can not count on any other human to fufill or validate my existence.
While not without scars, t hose things that ate at me for DECADES are of little importance to me now.
I wish you the best, in confidence that you will find your own personal route to serenity . At times it may appear that ill feelings, resentment, and anger might never end. I assure you they will ... everything does.