I find abstract FL AC's to be quite a hassle on the LSAT. Usually I POE it down to one answer, which feels right, but I don't work through the FL if I feel it'd be a super time sink. So I BR and work it out then (now). I'm talking about AC B here, "No migraine sufferers with heart disease will take the new medication except under careful medical supervision." The no makes it a not both relationship: IF MIG sufferer w/ HD -> NOT take medication. The "except" gets translated to an IF NOT, which now becomes a joint sufficient condition: IF NOT under supervision.
SO, in total:
IF MIG sufferer w/ HD
+ -> NOT take medication
IF NOT under supervision
How is my methodology?
https://classic.7sage.com/lsat_explanations/lsat-21-section-2-question-03/
I was in a similar situation about 4 months ago. RC always killed me. Rarely did I get -4 or less. I started using RC sections from PT 1-20 as my experimental in timed PT's. I read a 180'er a long time ago did the same thing. To really drill RC, even though I hated it and found it boring, you should double up on it on test day. Especially if 2 RCs come up on test day, you will be super stressed. Anyway, after several months, a lot of BR'ing and some note/markings style changes, I go 0-3 wrong. I took PT 36 a few days, but was super burnt out by this time (too much warm-up... I actually have a post about that ha ha), and I got a -3, even though I expected more like a -7...
In summation, one month isn't very long. I would recommend using ONLY RC as your experimental sections from now on. And BR RC EXTREMELY thoroughly. Also, as @ says, repeat sections are key. On my BR, I pretty much redo each RC section more or less timed (I allow myself to go over, if I need to) and I write line references for each right/wrong answer. THEN I go over each question untimed if I feel it's not 100% right or if I need A LOT of time to think on said question.
Best of luck. I'm sitting in Feb too.