Growing Out is Hard to DoDO have some inspiration handy for when the tresses get tough—maybe a photo of yourself rocking long hair or a long-haired celebrity muse like Sofia Vergara. Sometimes I’ll tack a photo up on the bathroom mirror to remind myself why I’m growing it out. At the same time, DON’T obsess too much—if you keep thinking about it, the wait will drive you crazy. “Hair only grows about 1/2 an inch a month,” cautions Kym.