How do I tell my parents?

Hi! I’m ace and I’m thirteen.

To start off my parents are really caring, and don’t mind if me and my brothers have diff religions. (I have 8 brothers btw) they are Christians, but are very interested in and welcoming to other religions; After most of my brothers are either Atheist, Buddhist, or Christian themselves.They are also extremly supportive of my queer journey and my weird obsession with spooky month. I’m not doubting myself, but I’m scared to tell them. I have a pentacle in my room (just a normal one) and my parents thought I was a satanist. I don’t mind them, but my parents do. how do I explain I’m an empath? how do I come up with an excuse for the items I need?please hellppppp