As salam o alaikum Members

I am a recent registered member to this website. I am planning to attempt CSS examinations in 2017 INSHA ALLAH as I have graduated in Bachelors in Commerce this year. I need guidance from all the respected remembers regarding the preparation. I have tried to enroll myself in few academies, which helps in the preparation, but due to their fee structures I wasn't able to join any of them. Is there any way that I can prepare myself at home or is it necessary to join any academy? And if it is fine to prepare from home, then from where I could get all the knowledge about the pattern of each exam (paper)?

A sincere guidance from all the members can be very helpful to me, therefore i request for some great advice.

Thank You all