Hey @180pronto, welcome aboard. A BR is kind of like an untimed test, but there are a lot of really important distinctions. Go review the BR lessons in the curriculum, JY explains it far better than I could.
Hmmm... I wonder what advice you will get on here. Since you're posting this on 7Sage you already know what you should do. Just go ahead and get it over with and get started. Welcome to the club!