@mindboggle18 I think its completely up to you what you're comfortable with them knowing, but as @JessieB has said, having your parents on board can be an important part of your recovery. 

I think educational handouts, website, or whatever else, are totally ok to give your parents. 

This is also why having them come into an appointment with a doctor or counsellor can be helpful as they can do the explaining. 

And I hear you on the difficulties around bringing them into the journey, when you feel hurt by them. That's tough.