Hey, Do not waste time in video classes or coaching classes now!
Very little time is left. Sridhar's book is very good for clearing concepts...read the theory part and clarify the concepts before solving the problems. It's very much self explanatory. Initially it will appear as if it consumes time but you will be able to complete it. After that refer PM and solve any leftout problems that were not there in Sridhar's book(very few would be there).
I repeat do not waste time in video classes or coaching classes.