How can we find safety while also stretching ourselves? How can we take calculated risks, and be more successful when making big money decisions? This week, we learn it all — including how to perfect our poker face — from Jenny Just, one of the few self-made female billionaires in the United States. In Mailbag, we cover where to put retirement funds, and how to save for a niece or nephew. In Thrive, how to host the cheapest summer BBQ (and still have a blast).