Best way to tell off my crazy family member?

[Juno Aerie]

My family member is literally so crazy. She is undescribable. I have not seen her in over 12 years (I am 18, she's like 50-something) Yet she proceeds to literally stalk me on facebook and talk with me, and bitch at my father about random stuff. She just sent me a effed up message on facebook, and I want to tell her she is crazy because she
-overreacts
-is immature and uneducated
-trouble maker
-extremely rude
-attention-seeks

How can I say this?

[Creth]

Its pretty just tell her she is a looser and not to contact you any more ignore her crazy wierdo a$$

[Sparky]

say it in person to her face.
you say it like this.....

you are immature and uneducated,a trouble maker, your always extremely rude
& go way beyond normal drama to get attention so please enlighten me just this one time and don't speak, look or talk to me.