Replace the name at the top for the character's name and remove the word placeholder. Delete the object and replace it with your character. The personality/traits section needs all of the red text to be deleted and retyped with black about your own character. And yep, that's it. (MAKE SURE YOUR CHARACTER IS AN OBJECT)
(The sign up window expired but you can still recommend anytime with a 99% chance for your character to join next season) If I use your character, I might do a little bit of work on it to match the BFB/ONE artstyle. Make sure it's original and try to make it vector, pngs are still ok tho.