HELP: Having *Too Much* Time & Unable to Effectively Double Check Answers

Hello all, I've been studying for the LSAT for a couple of months now and I'm finding myself stuck at that nefarious -2 to -4 mark on both LR and RC, but I can't seem to consistently perform better than that. My primary issue is that I struggle to effectively return to questions and assess them tabula rasa.

When I re-read a stimulus & answer options, I find myself going down the exact same mental pathways I did originally and rarely changing my answer. I only catch about 20% of my errors this way, and I know I could do better than this. It's not a matter of time spent on questions either, I tend to have about 9-12 minutes extra per section. Nor is it a matter of not enough time spent on specific questions, if I'm unsure of a question I will spend 2-4 minutes on it before answering, and these are consistently the ones I get wrong (My time per question is super bimodal).

For those who have dealt with similar challenges in their LSAT journey, what are some tips/tricks/techniques that you found most helpful for effective in-section review?