"currently preparing and studying for...."
is it scheduled yet? depending on how long you have, set aside time each night to study, maybe an hour, maybe 3, whatever you want, then study during that time. like everyone else said, 'the night before' is not the time to start cramming, it's time to try* to relax and get a good night's sleep.
*I say try because it's much easier said than done, but people recommend that because you are probably more prepared than you're giving yourself credit for. plus, once you take it, you'll most likely say the same thing most of us said after the checkride....."hey, that wasn't nearly as bad as I thought it was going to be!". good luck and try* to have fun with the wild ride training has led you on.