@indeed i have to read more in less time so what so i do?
Time management is the key to success. Change your routine and make a good schedule, give time to recreational activities also. Appear in pms/css, do mistakes, learn from those, overcome those and move forward.
@What is the easiest way to prepare for the exam?
Consult the past papers and experience sharing of CSPs and senir members, here:
http://www.cssforum.com.pk/beginners-guide/tips-experience-sharing/