hi.... ia am 12th passed out student of year 2018 i am dropping for one year for iit-jee so i request all of the members to give as much as suggessitions like the books i would refer or the DO’S AND DONT’S and moreover i am trying to buy the BYJU’S andi am not going to any coachimg i want to do self study. also tell is it good to drop for one year