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Late 90's or early 00's movie with psycho girl

I watched this movie maybe 9-10 years ago, and I'm trying to find it for 3 or 4 years, and can't find it for the sake of my life. I also asked  here 2 times last year and this user here commented that he knew the movie but couldn't remember it's name. And this is the closest I got, I tried every possible way I know, no luck so far. So anyway, the movie:
It's about a young girl with her father that moves in this town, starts to go in new school and soon befriends this goth-like girl that dismiss classes, drinks and smokes. Soon this goth-like girl (brunette) starts doing some bad things and kinda trying to ruin this other girl (blonde) life, like when she kills a guy in a hotel and wearing a blonde wig, so the police will suspect this other blonde girl. And then she killed some other girl. Then the girl and her father found that this goth girl was a psycho, and I don't know how the movie goes but I remember this psycho girl was in love with the others girl father and at the end all three were in some abandoned public swimming pool, where this psycho girl tries to kill this other girl and her father shot the psycho girl and that was the end I think. There is this part in the movie where they question if the goth girl exist at all because she disappears at a moment.
Another details of the movie is the goth girl hanging out at cemetery.  Both girls were young probably 13-15 years, and I think it's TV movie. The movie was clearly American or maybe Canadian.
asked Jan 24 in Name That Movie by Nokturnal (3 points)
Thank God you are here again. You helped me the last time with all these details but no luck finding it so far. Can you tell me the channels you usualy watch movies so I can search through?
Dude that's me, I totaly forgot I have made another profile here.  That tells how long I am looking for this motherfucking movie, and this isn't the only site/forum.  katsr4me only proves that I am not crazy and this movie actually exist. :D
I'm still looking. I can remember most everything about it. I'm trying to go back through my history, it's just taking time, I have an old computer, so it's slow. I have a different email, it's 3catsr4me@gmail.com. I can remember that at the beginning the teen girl and her father move, she has no friends, that's when she's befriended by the other girl. They become close friends, they pass notes/letters between them, they meet secretly at a cemetery, then the bad teen murders someone and disappears to make it look like she never existed to put the blame on the nice teen. The good teen has a hard time convincing the authorities that the other teen exists, but she is real. The very last part, the two teen girls and the one's father are at an abandoned, public, indoor swimming pool, that's when the story comes out that this bad teen blames her father for something and tells the other, you are going to shoot and kill your father, that's going to be the last thing you do, only it doesn't work out that way. It just kills me that I cannot find the name of this movie, I've seen it more than once. It doesn't have any major stars in it and it is not a lifetime movie either. I found it by accident when viewing another one. One of us will find it. Don't give up, I'm not about to.
Man I thought you forgot me, God bless you. I'm still not giving up, I've sent you an email.
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