Here is how I think of things, maybe it will help you, too. Someone here told me do not move on, move forward. The difference being, with moving on, you leave your X behind, while with moving forward, you keep living your life and doing well with the hope that she is moving along sort of parallel to you. Not really with you right now but out there next to you. Hope that makes sense. It really helps me to think this way. If I thought I had to leave H behind, I would not be doing a very good job of living my life.
As far as dating, it sounds like your coach has given you some good advice. Just make decisions based on what is best for you and what feels right in your gut.