What kind of exam do you have? 
I am retaking the LSAT November 9th so I have 30 days to prepare. I got a 159 last time. I would like to score higher to make sure I get in. The mean score for my top pic I am applying early admission is 155 and 75th percentile is 159. However, I am older and my GPA is not great either, so I want to raise my score to increase my chances.
UNC Chapel Hill mean score is 163 if I could get that or better I would apply there but they are a top 25 school so probably won't get in anyway as my GPA is not great. But there is a closer school I like that is easier to get into just want to make sure I get in.