Up here in the northeast, school ends in about 2-4 weeks. High school students are trying to finish up the year by completing all the remaining assignements and them plan for final exams.
The greatest strategy I found to help with planning a schedule for studying for finals is to make a plan for each week FROM the final exam. For example, if there are 4 weeks left to finals, make 4 sheets putting one week on each sheet. On each sheet, make a calendar of the week. Insert all the activities you are committed to in the next 4 weeks. Then start with your last exam and work backwards, inserting the subjects you can study on certain days. Alternate subjects and days, for example, every Monday, Wednesday Friday and Sunday study one subject and on the other days study another one. Make sure to study for at least 20 - 30 minutes ( high school) and take a 10-15 minute break.
Some students feel pressured by inserting exact times when they have to study. Don't feel that you have to insert the time...this schedule is to relieve the stress not create more. Good luck!