Not an expert, but I don't think you're a psychopath. Feeling badly or freaked out about violent thoughts about your loved ones is a good indicator of remorse. Which automatically means you're not a psychopath. You seem to know right from wrong, and you have morals, which also means no psychopathy. I do know that depression can partially or completely diminish other emotions, leaving you feeling dead inside. It also desensitizes you to events that should cause you great concern. You should definitely speak with a professional. Something as small as taking a little pill every day can make all the difference in your life. Good luck!