I want to come clean to my family.

However, I'm only 13 and I'm so scared that if I DID come out, I'd change my mind or something and that would be super embarrassing. Also, my brother is homophobic. I've tried SO hard to get it into his head how disgusting his thoughts are but he's only 9. My dad is one of the typical baby boomers against most of the LGBTQ community and hates when girls are masculine and vice versa.

Should I come out? I really want to. But I also don't know when and how.