Mention the term
blank refers to having a generalized (and blased) belief about a particular group of people.

Maybe meditation,stress relievers,try to have quite time try to get school done on time and try to go to bed earlier

Because without physical activity, the body has extra "energy" if you will, and so when it is time for bed you are not tired, so you end up staying up all night. also there is probably an effect on your internal clock, which messes with your melatonin production which goes hand in hand with your sleep cycle