I think that beginning to study now is an excellent idea! Skills such as critical reading, reading speed, and critical thinking usually take a while to build, and you'll have the luxury of spending time studying thoroughly without feeling rushed.
The above posters are right; you don't want to burn yourself out, though. I would recommend 1-3 LSAT study sessions per week, just for a few hours each session.
Begin with a practice test, if you haven't taken one already, so you can get a feel for what is on the LSAT.
With so much time to work with, I would recommend focusing on one piece of the test at a time. Reading Comp is the best place to start. Although most people feel that the Reading Comp is their strongest section, it is the hardest to improve upon in a short amount of time, so you don't want to leave it for last.
I would also recommend focusing on accuracy first. Work through the material untimed and thoroughly. Aim to get NONE WRONG. Figure out the logic behind each answer.