Hi for the past few nights, my sleep has been disturbed due to dreams about school. I haven't been in school for a long time, but every night, I dream that I am in a class and don't understand the subject, or I have an exam and I am not ready, or I missed the deadline to drop a class and now I am going to get an F in the class. sometimes, I also dream about some people being dead. a few weeks ago, it was my cousin. a couple of nights ago, it was another cousin. how can I sleep soundly, without taking any kind of medications?