I have trouble getting to the higher horizons of focus, too. Here's a thought:
Going to sleep is like going to a higher horizon of focus. If I'm able, every day,
to clear away all other responsibilities, worries and thoughts like
"I'll just quickly do this now", in order to go to sleep, then maybe
(just maybe) I can occasionally clear all those away in order to spend
some time thinking about a higher horizon of focus.
Maybe spending part of the workday or week re-prioritizing is analogous to
spending part of the 24-hour period sleeping.