I was getting decent score in my mocks...but last 4-5 mocks there is huge downfall, in one of them I even got negative marks. What should I do?

I have come to realize that this mock score fluctuation is a never ending circle, even after strenghening your concepts in quants and covering knowledge gap, the score might not improve.for me, I hv realized while trying to attempt more, I haven't either comprehended a passage well and hence got ques wrong, in lrdi in rush I hv many times not considered a possible case while solving a set, hence, my lrdi marks plunged from a good double digit in previous mock to a single digit in the next, in maths, I keep doing very silly mistakes while trying to attempt more. I think taking a day off to take note of the mistakes one is making would do some good for now.