An Expert Map or an Influence Map is helpful in risk management. But it doesn't only have to be used there. They are simple to produce and can be used to help you understand what actions or choices you have in complex situations and what actually influences what is happening.
Not talking made everything worse because it stopped everything where it was. It wasn't you then....but it was more of the you that you wanted to be. Now everything is forced. Things may have turned out exactly the same. No one will ever know.