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.
2 people found this useful. Cocaine will stay in your body for 3 days. in your blood is longer then that.     Don't underestimate, the amount of time cocaine can stay in the system. Cocaine c â¦ an clear in about 2-3 days, however the metabolite (benzoylecgonine) can stay much longer up to 30 days.In 72hrs cocaine is out of the bloodstream, and in 1-3 days out of the urine. However if you are a regular user, it can stay present in urine for up to 12 weeks. people found this useful. Cocaine will stay in your body for 3 days. in your blood is longer then that.     Don't underestimate, the amount of time cocaine can stay in the system. Cocaine c â¦ an clear in about 2-3 days, however the metabolite (benzoylecgonine) can stay much longer up to 30 days.