An agitated mind is receptive to more disruptive events (to bring more bad kamma vipaka). Try to calm the mind by thinking about good things (things you like, friends/family you can talk to, etc), and try to engage in small acts of kindness to others. It will help more than you think.
Another thing could be listen to some chantings:
“Sutta Chanting”
Many people do that before going to bed in order to calm the mind and have a restful sleep.