I have words of advice for everyone reading this because I've made the same mistakes when I was your age:

 -  Don't ship ciel and sebastian that's just weird, ciel is a child.
 -  Don't call yourself a fujoshi because that would mean you like yaoi. And yaoi is an AMERICAN term for gay porn. 
     There's a difference between BL and yaoi, trust me. 
 -  All ships are ok as long as it's legal. Because even if it's fictional, that still makes it acceptance and publicity of 
    pedophilia content. PLEASE be careful.