Planning on telling my parents

(Delete if against rules :3)

Some issues I’ve been thinking over like them not supporting me, because my dad has made weird comments in the past, my brother said he asked and said something like “okay whatever” when my brother said “no comment” this will most likely be a issue I’m working with, I’m mainly very worried and looking for advice, any tips? I messaged my mom (bad idea I know) if she or my dad would care if I wasn’t their religion and I have yet to get a response, any tips? Very Christian parents that enrolled me in Christian school, so definitely need some advice lmao

I will update if it’s allowed.