When to start studying?

When should I start actually cracking down and studying for the LSAT? I'm a freshman in college so I know I'm suuuuper early, but many of my friends are pre-med and they're discussing doing MCAT study sessions starting this upcoming summer.

While I know pre-meds are typically pretty psycho (lol) it got me a little nervous. When is a good general time that I should start creating a study plan?