Five Whys: Problem: Why do I not get enough sleep?
Why do I not get enough sleep? Because I stay up late at night.
Why do I stay up late at night? Because I stay up late doing homework.
Why do I stay up late doing homework? Because I do not finish it during the day.
Why do I not finish my homework during the day? Because I like to take breaks and go to the gym.
The solution to getting more sleep would be to dedicate more time during the day to complete school work and not take as many breaks or go to the gym until all of my work is done so I can finish my assignments early and get more rest.