How should i prepare for the chapter Electrostatics Potential and Capacitance?

Remembering all the things is becoming difficult for me. Please help me.

@ shreyas 
frst of all i would like to tell , this chapter is full of derivation , and u need only practice at least 3 times to a single derivation . 
and remember 1 more thing – cbse have given this chap for dielectrics and capacitors only , they are vvimp . 
the derivation of dielectrics between the two plates of capacitors , they are sure shot in the exam, and also the derivation of expression for parallel plate capacitor . 
and just read the properties of equipotential surface , 
1 ques will come from energy storage of capacitors , and 1 3 marks ques from series and parallel config of capacitors . 
maintain a formula notebook , as this chap have more than 30 formula . 
ALL THE BEST ..