Where to start with the LSAT?
Take a free diagnostic test and see how you do. You'll then know what to expect and how much work you'll need to put into your studying to do well. Make sure you take the test timed. Timing is practically everything.
Here's a free preptest to try: http://www.lsac.org/docs/default-source/jd-docs/sampleptjune.pdfIs the LSAT the only factor in admissions
No, but it's one of the most important factors. Your past academic records like your GPA matter a lot too. Your personal achievements and successes may add to the picture but less so. You should realize that the LSAT is taken by all future law students so it makes comparing students and their academic intelligence easier for the admissions department. The idea is; performing well on the LSAT shows you're well suited for the study of law.