It is the act of reading itself that I miss, the opportunity to retreat further and further from the world until I have found some space, some air that isn't stale, that hasn't been breathed by my family a thousand times already.
I have a crazy amount of different jobs, so the way I manage that is to not do more than one at a time. It's like old computers that had small memory chips, they would do something called swapping, where they would fill the memory with one task, do it and get it out.