Prepare for 2months for it in total for CS. Get Started by reading first aid and Kaplan.
Then practice cases on ClinicalReview, which was most important part in preparation .
Look at clinical case practice as an essential tool to become a good doctor.

The most important thing is to make sure that when you read u really grasp the concept then go
online Practice cases and questions on Clinical Review, this'll also made it easier for you
to remember things. Real exam experiences given by them ll'be extremely helpful. Another
unique thing available with them is Score calculator with which you can asses your
performance very accurately plus they provide excellent customer support, if you face
any problem they'll resolve it immediately..

Then i started started practicing it with a study partner. I made him follow this protocol
I developed.

Putting together all the thing..

1. Read Theory properly.
2. Go through exam experiences, both passed and failed ones. Both will help A LOT!
3. Then develop a protocol, you will be able to develop it after going through the above material.
4. Practice Cases and question at Clinical Review. I recommend them to anyone who is looking
for good online USMLE course.
5. Practice writing or typing the patient note. They want it exactly as given in First Aid.