I have about 9 weeks till the LSAT. I have the Powerscore bible trilogy. Right now that will be the only resource I can afford till 2 weeks. Do you think Powerscore, buying LSAT official tests on Amazon and video explanations on 7sage and youtube are enough resources to make around a 170? Even in the Powerscore bible 2 month study guide, its suggesting I get the workbooks (around $60 each) and a couple of other books. I already spent $110 on the PS and $200 for the LSAT. With all of the suggested resources from PS, that would total up to more than $300.

Also I know a lot of people suggest taking a cold timed diagnostic test, but I have heard some of companies saying that its best to study a bit before taking an initial test and don't time it till you get closer to the test dates. What do you guys think? http://s3.amazonaws.com/studentcenter/self-study/2-Month-LSAT-Study-Plan.pdf this is the PS 2 month study guide