Something I do when am anxious is to break things down into smaller steps, I find it makes it easier.
I think prayer can work the same way, because you are passing the future over to God to look after, and just manage the present moment yourself..
Even something as simple as a car journey, with a difficultly of parking at the end, especially if it is in unfamiliar territory.
We can only cope with the present, really.
🌹