Of  168 hours in a week, students generally use:

- 56 hours of sleep (8 hours are usually adequate; do you get enough sleep?) 

- 21 hours of eating (eat, and relax, and socialize!) 

- 20 hours of attending class and labs.

- 71 hours/week or 10 hours/day for study, recreation, and everything else.

CONSIDER MAKING A SCHEDULE. It can work like a charm in cutting down on tensions, worries, and daydreams. Far from making a robot of you, a time schedule frees you from making top-level decisions constantly, thus allowing you to make the best use of your time. START BY MAKING A RECORD OF YOUR FIXED ACTIVITIES.

Examples would include classes, meals, meetings, etc. Each week add information revolving around class assignments; note due dates and estimate study time required.

REMEMBER THESE PRINCIPLES OF TIME USE when deciding how to spend your time. Many effective schedulers habitually plan their day at a regular time for 5 to 10 minutes in the morning or before going to bed. Allow larger blocks of time for learning new material, grasping concepts, drafting a theme, etc. Divide these larger blocks of time into definite subparts the length of your concentration span (20 minutes? 30? 10?) As you begin work on each sub - part, jot down the time you expect to finish; when you're through, reward yourself with a brief break: move around, talk to a friend, drink water, eat a snack...whatever is good for you. 

Use short periods of time (15 to 45 minutes) to review. It's especially wise to spend a few minutes reviewing immediately BEFORE a class involving discussion or recitation.

Immediately AFTER a lecture class spend a few minutes reviewing your notes. Schedule harder study tasks when you are most alert and can concentrate best. Do something daily -- don't let it all pile up! Plan to really learn the first time; the rest of your study time should be spent reviewing through recitation, discussion, making up and answering possible test questions, etc. Don't try to allocate ALL your time; know what needs to be done and how long it will take you. It's HOW you use your time that counts.