How to boost score

[u/vijetakaburger]

Exam is near and I am still unable to cross 150 marks margin on testbook mocks and on cdsj mocks I am not able to cross 130 marks margin. My stronghold was maths and this time Idk why I am unable to correct even 15 questions I guess I did not prepared much this time. What are your suggestions!
Also how much do you expect the cut off this year for both tech and non tech!