I felt myself might be the worst RC test taker in the discussion section. I have no idea how to improve it. Focusing on big picture has no help for me. I simply do not understand what the passage was talking about! My LR is now -5 but RC score could not be worse.
It's the biggest obstacle on my LSAT journey.
Nah, practicing law at about 30 is not late at all (for your question 3). Your experience as USMS officer will bring you a lot more than what class can teach you after you have JD degree.