be out to my family about my kink

The saddest thing about my life is that I can’t share the most beautiful part about it with m family and friends. And I am losing my relationship with them because of it. I am kinky it is part of my heart and my soul. It is my one true life passion. It gave me the strength to change from a shy non-confident ugly girl to a big bold and beautiful woman not afraid of life and living. But I can’t tell my mom or my sister about that. My mom could probably deal with it but my sister I think would freak.
She would not understand I mean for her life passion is her work. Work is something I do Monday to Friday 9 to 5. She would not understand how I could enjoy it. I could enjoy pain and power. But I do want to share and educate her and my vanilla friends otherwise I will lose all contact with them as I have less and less to chat about with them.