1 Make studying a regularly-scheduled part of every day. 2  Study difficult subjects and those you do not find very interesting first, when your energy level is higher.  Be aware of your best time of day when you are the most alert, and use this time for studying.
Loading ... about 2 days contents of a 250ml cup of coffee. It only takes you two hours to process it trough your system if you weight 200 lb, you will loose 50% of it on your first urine, but it does not clear completely out of your system for about two days.
Marijuana will stay in your system anywhere from 2-60 days. It all depends on how often you smoke and the amount that you smoke, and how fast of a metabolism you have. If you take seven hits seven days in a row it is going to take about a month for it to all come out of your system.he average time pot stays in your system is 30 days. The time may differ depending on your metabolism. If you have a fast metabolism it may be shorter than 30 days if you have a slow metabolism it may be more. The average though is about 30 days.