Direct tax help

Hello friends friends I took my coaching from vg sir under fa 2009.......but from last three attempts I fail to score above 45 in DT......I prepared well.....did all case laws.....ammendments.....nd also vg sir latest summary module.....I also did all past year questions given at the back of each topic from his module but still unable to score......I even did rtp nd did all case lawys quite well......I dont want to shift to other book.....plz help me what should I do to score good. Kindly let me know any good compilers or should I do practise manuals???