How to handle the poor performance in prelims mock paper ??

I m part of Sfg level 2 online . And very regular in attempting prelims mock paper from mid Feb 2022 itself. Still , I hve been getting poor marks in mock paper .. I hve attempted Simulator open test and got 39 marks.. Now ideally what should I do ??  Anyone who is very comfortable with prelims score  , pls I need your support,  suggestions..