BR 20 pt increase.....

so today i blind reviewed a 20 pt increase on one of the sections that i took timed; and about 2 weeks ago i BR a full length, timed PT with again, a 20pt increase. i've been studying for this test for over a year and my goal is a 170. i think the timer is really throwing me off. does anyone have any tips or suggestions to help me with this? i'm trying to register for the November LSAT to apply for this cycle but i'm not confident at all. i'd be appreciative for any feedback, thanks!