We're not in control and it is okay

As I gaze upon the future ahead of me, there are so many things I cannot control. Details, big and small, among other variables.
What can we control? Last week I lost whatever control I had over some very basic body functions, like eating. I couldn't keep myself calm; I couldn't stop shaking; my thoughts raced through my mind with no logic or order. As I felt better physically this week, the emotional toll of last week's crisis started to show. During my therapy session this last Thursday, I found myself tearful just by remembering 'outloud' what had happened. My therapist is wonderful, and she's helped me understand there are things I cannot control, AND it is okay.
The pain is intense, but if I have to shake, I'll shake; if I have to throw up, I'll throw up. I know it will pass. I've been through this before, and it does not last forever. I'm more resilient than I give myself credit for.
So as I discuss my future outloud, and realize the plethora of possibilities and outcomes which I cannot completely control, I am reminded that it is okay. It all shall pass, even if not all of it works out the way I expect. Being okay with no control may be the ultimate challenge of the anxious person. It has been my challenge for years, and I suspect I am still far from the end of the way.