I am sort of the same way. Prior to my LSAT I was PT'ing about -6 on RC with me losing the most points on passages I didn't find particularly appealing. On test day, I found all but one of the passages fairly interesting and made an all time best of -3 on RC.

I do find that the RC Strategies covered in the CC and live sessions were really helpful in general though.

Retake, was in a somewhat similar situation and took a few months to study more and retake. I do not regret my decision to postpone that cycle and would do it again if I had to go back.