wholly depends on your current status of syllabus completion. It also depends on your reading capacity .. whether you are a night owl or a morning lark? What is your current schedule of the whole day? which are the subjects that u r comfy with? which are the subjects that u feel need more attention.
Frankly speaking.. there can not b a straight answer or readymade study plan to ur question.
It is a discussion needing two way elaboration of existing factors and prospective possibilities.