Understanding a source of pain and anxiety

Just realized that a source of anxiety for me is that I'm missing a certainty I used to feel about the future.

Before June 1st, based on the past I had a strong sense of what my future might look like. Now, based on my new past, I no longer have that feeling.

The reality is that I could have no more actual certainty about the future before June 1st than after, but I FELT like I could. The discovery of my husband's extended adultery with prostitutes simply put me face to face with the fact that the future for all of us is unknowable, uncertain and mostly beyond my control. We may have beliefs, ideas, thoughts, feelings, hopes, goals, etc...But there is no way to know for sure. That fact comes into direct conflict with the base survival instinct. So that is the true source of a lot of anxiety for me...being present to the fact that as a human being the next moment will forever be unknown to me and beyond my ability to control.