Only allowed one goal at a time ?

I watched the VIP call from 2017 and Brooke tells someone to pick ONE thing to focus on.  The lady said she has 3 things she wants to focus her time/goals on.  Brooke told her “No, you have to choose one.”  I thought she was kidding and was just telling her that to see what her thoughts were before telling her that of course she can work on multiple things at one time.  But nope, lol.  She really did tell her to only pick one.  So now I’m thinking I’ve been going about scholars the wrong way.  I’ve been thinking this whole time I can work on fitness, money, and my business at the same time.  I can only choose one?