Kathleen Edwards is a Canadian singer-songwriter whose lyrics are full of straight talk and sharp comebacks. But it took a while for her to get comfortable with having tough conversations. On her latest record, “Billionnaire,” Kathleen reflects on the last five years in which she sold a business, got married and moved twice. She tells Tom Power how these major life changes have made her more courageous, why she’s choosing to not be self-deprecating anymore, and how working with Jason Isbell taught her to stop overthinking her music.