Schedule Exam Date Now or Later?

Hey folks! 
So I got my approval from the board, bought my review course, getting ready to study after summer vacation here next week, etc... In other words, I'm not all in for another week or two, still passively studying. 
My question is - should I go ahead and pay the payment coupon and schedule something now, or wait til I have started studying? What is your recommendation based on your experience? 
I might need the pressure of a date to meet, but might kick myself for it too 🙃