hi, for the last couple of weeks i've been having really negative thoughts and worst case scenarios that may happen. for example, my dad it's 1 hour late and it's not home yet i cant sleep i instantly think he's gotten into an accident and hurt himself of worst. or at night, i think someone it's gonna get in my home and kill all of us. or for instance, i travel a lot i'm always thinking the plane it's gonna crash or something horrible its gonna happen. it usually happens at night, when i'm about to sleep. the day i can keep my mind occupied. but i really don't want to have this thoughts ever again, i hate them and i'm scared of them. can someone give me some advice of how to cope with them?