I need suggestions to study for cs professional

Dear fellows,

My cs professional exams are due in june,2013. Two months ago, i was determined to give all 4 groups (8 papers) in this attempt. But due to some reasons my study got affected. Now i am in dillemma  whether i should give all 4 groups in june 2013 or should postpone this attempt till December 2013?

I am also thinking to give 2 groups this time and 2 groups in next attempt.

I am preparing solely from modules of institute.

Please friends advise me what way I should go. I can’t give more than 3 hours except Sundays to study. (may be even less somedays)