Buy What I Wish I'd Known When I Was Single: How to Do Life As a Young Adult to offer plenty of sound advice on "getting joyfully through these in-between years." You'll learn to stop focusing on things you can't control, to play the dating. Read 6 Pieces of Advice I Wish I'd Believed When I Was Single by Rachel-Claire whether you're single and dating, newlyweds, married or widowed. Here are six pieces of advice gained from close friends and family in the . Follow her blog at militarylawpress.com or on Facebook. When I started seeing my husband, aka the first guy I wasn't embarrassed to tell my therapist about, I was gobsmacked to realize how much I. 1. You don't have to date only one person at a time. In the past, if I liked you, you were the only person in my world. But then I started dating a. What I Wish I'd Known When I Was Single has ratings and 39 reviews. given us some good advice in this book when it comes to playing the dating game. In fact, I'd been going about being single all wrong. I didn't have very much fun at it, which is depressing since I didn't pair up until my 30s.