I think ว่คุณควร subject to the police first, should be careful for more don't go alone. Don't go home late at night, and should know how to protect themselves.
I think you should inform the police first. Should be more careful, do not go alone. Do not return home late And should know how to protect themselves.
I think you should report it to the police at first. Should be more careful not to go anywhere alone, don't come home late at night and should know how to protect themselves.