Use what you were forced to do as a JW. I went to the headmaster's office and handed back the raffle tickets we were each given. I stood outside school assembly, sat in a class on my own during school Xmas parties, didn't join in with making Easter cards.
Am I damaged? Well it wasn't fun but I can go just about anywhere on my own including getting on a plane and travelling to other countries. I can join clubs and classes and go on my own if no one wants to come with me.
Some friends and relatives, never in a cult, can't seem to do anything on their own. Did I enjoy growing up in a cult? Of course not, but use what you have learned, whether you enjoyed it or not, to make your life now as interesting and fulfilling as possible. Don't let that cult defeat you. You are bigger than that.