What helped me was that I did some untimed sections but forced myself to ID the question type, highlight the conclusion and make a rough anticipation for each question. Once I started to get into the habit of that, I did a timed section at 150% time and then lowered the time as my accuracy got better.

I have been in your shoes and understand the struggle.

In the blind review, what helped me improve was not just reviewing the question I got wrong or flagged, but understanding what steps that I took during the test that made me gravitate towards one answer over another. I also identified which questions I took longer than the target time to answer and see where I missed opportunities to skip. Skipping was a game changer for me. Anytime I encountered a lengthy parallel reasoning question or a very diagram-heavy conditional reasoning stimulus, I skipped it and came back. Skipping in both RC and LR helped me bump up at least 3 points.