Am I a sociopath/psychopath?

I've been watching a lot of shows on TV and stuff like that and have been discovering that I am very much alike to some of the characters that are on their, but the characters that I believe are similar are always the murderers or just the bad guys in general. Which lead me into wondering as to whether I was a psychopath a sociopath or perhaps just going through the phases.

First of all I am 14 years of age, turning 15 this year.

I have this thing were I have sudden urges to hurt people. My mother once gave me a knife as I was cooking dinner for that night and I had a strange urge to turn around and stab her. She had not angered me nor had she upset me in any way I just felt as if I needed to do it.

I basically have no emotions whatsoever. I don't feel sorry for people, I never get sad, happy, or anything the like. I can put on emotions pretty well and people never seem to notice anything but 'm never actually feeling those emotions.

I am obsessed with murder, at this point I'm not quite sure as to whether I want to commit it or solve it but it still worries me.

I hide things from everybody. I never let anybody see what I'm doing even though I never do anything I know they wouldn't be happy about anyway, I just for some reason hide it anyway.

I never have hobbies or likings towards certain things as I believe that people may use it to threaten me into doing something and even if I did have a bobbie I would always hide it

I am a girl by the way (in case that helps) and I am just generally curious!

Thanks!