I've taken 6 practice lsats, My scores were 155, 153, 148, 157, 149, 145

I've completed all of the logical reasoning section of the 7sage course, what am I doing wrong??? How is it possible that my scores gets worse the more I study

I did the LR section of the 7sage course, and am a little better at identifying the correct answer, but still don't feel like I am where I should be, is the best way to improve in LR just to spam out drills?