can anyone help me here

moderate in RC
able to solve 3/4 questions from easy difficulty and familiar type of RC science tech politics psychology
but when it comes to medium or hard level difficulty accuracy plummets with only 2 or sometimes 1 or 0/4
been reading articles and newspapers TOI deccan herald etc.
still facing this issue. and I have also practicing in study room
any tips to improve my RC accuracy
atleast 3/4 or 2/4 would be good considering the difficulty