How to plan when exam is near.

After a lot of brainstorming i realised that I don't know how to plan.

This is one of the prominent reasons for my prelims failure till now.

I have bpsc prelims on 13th dec.

How you guys plan?kis subject ko kitna time etc

I am really clueless.

Plss tell how you guys make plan with 45 days remaining...a detail procedure..

I really need it.