At this point with 20 days left there should be two things you're working on, taking practice tests and making sure you're mentally stable with regards to timing, pressure etc.
A great way to do this it seems would be to make sure you have a timer set, approach every question just as you would in the testing room, read actively (don't skim!) and make sure when you're not studying, that you're not studying
It sounds funny but in my opinion I think when you have that time off read a book, go workout, take a nap, but just do something to keep your mind away from the books, it'll keep you refreshed!
“Focus on the journey, not the destination. Joy is found not in finishing an activity but in doing it.” - Greg Anderson
Follow my Journey at: nphelan-s-road-to-117533.html
Kudos? Don't mind if I do!