Flower the best way to give insight to the therapist of what it is like to be in the borg is to let her know that it is like being in a very controlling dysfunctional family - that gives them a huge step forward into the dynamics of what you will be dealing with. Most therapists have at least an inkling of dysfunctional families and blurred boundaries. This will give you more time to actually deal with your problems and issues and have to spend less time educating her (or him) about the borg.
When I first went to counselling I was still very ashamed to admit I was a JW. I felt like such a failure. Later on I realized I wasn't the failure - the system was. Putting the pieces back is hard work but truly the best work you will ever do.
Rejoice in the healing and not in the pain.
Rejoice in the challenge overcome and not in the past hurts.
Rejoice in the present - full of love and joy.
Rejoice in the future for it is filled with new horizons yet to be explored. - Lee Marsh 2002