You need to familiarize yourself with the lsat question types and the types of traps the lsat test makers set. Only when you understand these two things could you truly improve your score.

Some other tips.

Blind method review.

Redo games/questions you totally messed up on. Make your weaknesses into strengths.

Try to make lsat enjoyable. Instead of dreading your score and thinking of your failure. See where the test takers tricked you and made you pick the wrong answers. It could be really fun when you change your approach.