I was you six years ago and remember how utterly crushing it felt. My whole family are very full-on JWs; I lost contact with some completely, others I lost for a while and we've since rebuilt something of a relationship (my parents).
My children were young at the time and I knew I needed to get out before the Org poisoned their lives. It was the toughest thing I've ever done but also the best. Weekends never get old. My anxiety and depression are gone.
And yes, you choose to continue to harm yourself over your parents because you've been conditioned to do so. But that's not healthy or natural. One of the things that made me realise that staying was futile was that my parents aren't able to be truly happy anyway whether I'm with them or not because they're in a cult. There's no sense staying in the water and drowning with them if you have an opportunity for rescue and they refuse to come. I still live in hope that one day my parents may follow my example. Show them the way.