Amongst the things said to me by my daughter who I loved as much as I'm sure you did your son included:- "He ruined the first twelve years of my life don't let him ruin the next twelve"!
The lies told by the parties arraigned against us in our battles to maintain contact with our children, including of course the most insiduous use of the views of own children who we have never harmed, and only tried to protect, makes life impossible for so many of us.
I can recommend a very good, sympathetic/supportive website for non-custodial mothers/parents:-
http://www.nancm.com/?page=home
If you are like the rest of us you will have years to go through before matters improve regarding your child, if they ever do. If you choose to assist in the campaign to change family law so that others don't face the injustice we have done, that will mean years of examining the laws, government agency policy documents, lobbying bodies arguments and so on. Doing this however does give you some better understanding of what you have faced, although any faith in matters ever improving is hard to cling onto as society seems so divided and generally refuses to consider the hurt to parents like ourselves.
I want to wish you well and trust you will find support and encouragement from those of us who know how easily parents can be excluded on false evidence.
All the best, Graham