The problem is you may be free from the Borg, but not free from yourself - unfortunately the self in this case is programmed by the Borg.
Most people are not inclined toward self understanding for whatever reason, it is easier to get by with this when one has not been programmed in such a way - but even then there is still programming, it is just more of the mindset of the mainstream. IF you should dig deep you would in effect be going beyond the JW programming, and the good news is there is the prospect of being even freer than a 'normal person.' But if not, to be brutally honest it is essentially the same process reversed, and more than likely will take about as much time and effort.
This is going to sound simplistic, but a basic, down to earth way of approaching this kind of self discovery is to get to know someone who is really obviously free - not from the Borg but just freely living life to the fullest, whether it's an ex or not. While it may be appropriate to seek therapy at times, don't think all the answers has to come in the form of something very technical, or something to do or practice. And this approach will probably not yield immediate results, but it does have an effect - just look at how much of an influence the Witness association has had over the years. The difference here is its not a matter of newer, better reprogramming, but being around someone like that helps release one from the programming. So for that matter be aware there's no telling what the life situation of someone like this is, but notice their attitude in life. Again, simple - but it is far more valuable than you know.