you just need to be in a quiet place. I used to procrastinate a lot to before I started taking better notes. Also rest will help. After getting you some good sleep get a snack and go at it.

Effective Study Strategies

Read the text assignments before going to class.
Sit in the front of the classroom.
Write down clear directions for all assignments.
Focus on what the teacher is saying, not how.
Scan reading materials before reading.
Type papers when possible.
Develop mnemonics (memory cues) when possible.
Keep a calendar of major events including tests, deadlines, etc.
Set up a study area for that purpose only.
Work on one assignment at a time.
Keep all the supplies and materials you need readily available.
Take periodic breaks (5-10 minutes each hour.)
Underline major points in your notes.
Get together study groups to review before tests.
Pay special attention to the first and last five minutes of the class.
Ask questions if you don’t understand.
Several shorter study periods are better than one long one.
Breakup large assignments into a number of small tasks.
Get a good night’s rest before an exam.
Read through the entire exam before beginning.
Answer the easiest questions first.
Pace yourself to allow adequate time for each question
Type up notes as soon as possible.
Use five-minute blocks of time to review notes.