I've been struggling with the inability to plan with any certainty, with sudden shifts in situations, with priorities in constant flux.
The uncertainty is stressful and best summed up by "I just wish I knew what's going to happen, then I wouldn't be so anxious".
And I realized that we never know what's going to happen, that's a constant of our lives and that any assumptions we have to the contrary are simply illusions. This was the best lesson on staying in the moment I've ever had.
I can handle the next five minutes, I think.