The LSAT, like any standardized test, is a game. It sounds like you are jumping into the deep end of the pool without first learning how to swim. You need to start with a plan. There are a lot out there but I suggest printing this one outLSAT STUDY GUIDE
The consensus is that the PowerScore bibles are the best supplements. Once you have gone through those you need to work on timed tests. There is a series of ten actual tests that you can purchase fairly cheaply. Time is your enemy. You need to recognize when to give up on a question and move on. Good luck.