Solve atleast 100 mock test before the exam along with revising the syllabus and making note of mistakes and you will make it in one go.
This may sound not huge or maybe too much to some but this is actual game. Prelims now a days is not the Prelims that used to be 5 years ago. This is most unpredictable and sort of to say luck factor added to it, but luck is also with you if you have done your homework.
also, why not to focus on things in your hand rather then thinking about the luck.
Solve the mock test and note the errors and your weak areas work on them and be patient. Don’t be too quick to judge its ok to score poor sometimes but slowly you improve.
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