I haven't taken the LSAT yet, well, actually I did but way back in 2005. But I'm retaking it in August to go back and finish my law degree.
Here's an acronym I find very effective when studying LR and RC. It's called RCA.
It stands for REVIEW-CORRECT-ABSORB
This process can be done on every LR question and RC passage. First, do the problem. Then watch JY's explanation. Review what JY says, then correct your wrong thinking (or reinforce your correct thinking). And then simply by listening to JY, you absorb the material. I bet you gain at least a 1 point advantage just by listening to JY, who is very good at his job.
It's really easy and effective, but it takes a lot of time. I hope it helps you!!
I'd work up to the harder questions. I ditto the advice to drill easy until it's 5/5. Also, memorize everything JY has to say about LR from the lessons. Use a program like Anki to make digital flashcards and then drill 'em until you dreaming about them at night.