You should systematically plan out exactly how much time you have left, and then allocate as many hours as you have free, morning and early evening.
So let's say you have four hours a day for the next week.
Take the material you need to study, break it into sections of as many days as you have. Let's assume for the purposes of this example, that is seven.
Then when you have the material in seven sections, break it down further into hours so you have four hours a day that's four sub sections.
Now that you have it in bite size pieces, stick completely to that, don't jump around, don't panic and daydream of your imminent failure, just do it.
If reading doesn't stick too well, first, remove yourself from all distractions including radio, music, TV and telephone. You don't want anything sabotaging your efforts.
Then go through it, and highlight key points. Then revise them, and lastly, try to write them in your own words in a note book.
Writing something involves reproducing it, which means you have to remember it. That will get you where you need to be at the end of each day. Plan your plan, and follow it.