Although I don't have this disorder, I have a relative who does.
In addition, I take medication for migraines that causes fogginess.
So, I have some familiarity with the topic.
What Mari has said sounds VERY true to me!
Being mindful of medications that cause loss of clarity is very important and lowering them (with Dr permission of course) is imprtant.
I also think it is very helpful to be aware of important things in your life by tracking.
Two of the most important might be 1. spending and 2. eating. These two items (habits)...when out of control...cause chaos and lack of inner peace.
Also, along with the low carb diet, I have also noticed that I have more clarity doing two things:
1. Adding a supplement called PS 100 to my vitamin mix
and
2. Eating tuna fish regularly