hi friend,

 

        dont stick to too many books as u said ur having so many books for physics, just do H.C.VERMA thoroughly,and first do eg problems from it and then go to exercises,this will make u good in physics,for maths TMH is very good and for this alsodo eg probs first

 

            regarding ur marks in fiitjee just forget abt past marks and start preparing for fiitjees FULL TESTS  and try to get good marks in it,that will give u confidence