The two things which I can suggest you are:

(1). Appear for the scholarship cum entrance exams conducted by coaching centres and by scoring well in these exams you can get scholarship to study in the coaching.

(2). Take DLPD or online Test Series of a coaching centre and study from it.

OR as you have asked for the notes, I'm providing you the link to my own short notes of one of the chapters of Mathematics (Resonance Kota).

Here it is:

https://www.dropbox.com/s/91pvib4al2u0qia/Chapter%2010%20%28St.%20Line%29.pdf?dl=0