Thinking logically is effortful.
Reality does not care. Parts of life which you cannot easily understand will not go away. One may tend to automatically ..............
But a few tenets of skepticism can be remembered.
That much of the world - especially underlying processes - is unknown.
That every time we look at things we look via certain glasses. We see only via this thinking glass. There are other facets/
That what seems certain and simple can be as misleading as anything.
Just getting used to remember these basics may help a person to be more realistic even at times without energy. Remembering basics is easier than analyzing.
Let's hope I am right.
PS. It seems we cannot learn. But we can. All of us know effortlessly many unnatural learned facts and heuristics. Skepticism must not be different.
 It has been technically proven by Baumeister and colleagues. When people are "depleted" that is after making some effort ful self control, they can no longer think on deep logical questions.