How do i come out officially to my bff

So i put my pronouns in my bios on social media but ive never directly told one of my best friends that im Enby. I love her so much but past conversations about gender has led me to believe that shes enbyphobic. The conversations were over a year ago. But idk her stance on enbies now. Im sure she knows i dont identify with the binary, but not directly telling her who i am is eating me up on the inside. She deserves a face to face conversation about my identity. Im just so scared shes still enbyphobic. Any suggestions on how to bring it up to her?