The sages in this podcast talk about what they did leading up to the day of the LSAT:
https://m.soundcloud.com/user-737824810/8-the-week-before-the-lsat-how-to-manage-nerves#t=48:09
powerscore is a pain to get through but it does sort of help. with the logic games it helped me break down the games. in my opinion the logical reasoning PS book is overly complicated. 7sage is more user friendly.
you can go to resources>> lsat analytics, then choose that preptest from the list. after you click on it, you will find a red button on the page that says "delete preptest data". after the data is deleted, you can restart the test.