In January 2019, I left my job in management consulting at the Boston Consulting Group to begin a new journey as a Product Manager in Facebook’s Rotational Product Manager (RPM) program. While looking to switch jobs, I leaned heavily on my product manager friends. I asked them what their days entailed, how they prepared for interviews, and why they decided to become product managers. I also took them up on generous offers to mock interview me. Of course, not everyone lives in San Francisco and has ready access to friends who are PMs. Knowing how lucky I was to have their support, and in the interest of paying it forward,…