Why: Sometimes, you need to let go of your need to know why and trust that wherever you are right now is where you ought to be.
What if: Because there’s nothing you can do about the past anymore. But, you have the power to change your present (and your future). Why remain stuck in the past—stuck in your what ifs?
How: Because you’ll really only know when you get there. While you’re not yet there, focus on what you can do and what you already know now.
To all these questions, the best answer is to simply trust.