Is your OC a Mary sue?

Dolly (Creepypasta oc)

CREEPYPASTA OC:

name: Adelaide Reece
Ohh I love the name Adelaide.

Cp name: Dolly
Hmm..
Age: 19
Cool.
Gender: female

Species: human though considers herself a living doll
Craaaazy~ truly gone fishing ~

Hair color: brown
Cool
Eye color: black buttons sowed over her eyes
How can she kill if she can't see? How can she function? Off the little holes in the buttons?
Personality: very childish and playful, only creepy or horrifying when she's killing or VERY angry
I've Seen a lot of OCS similar to this.
Sexuality: panromantic demisexual
Cool.
Appearance: tan skin, button eyes, a sowing needle acting as a lip ring, half of hair in a side ponytail, other half down (hair length is past her shoulder but above her elbows when down) a pastel pink and white doll like dress going just above her knees and brown buckle shoes with white long socks

Bio: her father was an important business man (her family was fairly rich)who always told her to act like a porcelain doll;pretty and perfect Because of this she struggled with self esteem issues. She believed her mother was only doing this  because she loved her husband and so did this for her mother. She later found out that her mother was hollow inside (metaphorically) and had no will of her own, just a plaything. She realized her family was full of lies and she wasn't a porcelain doll, so in an act of insanity and rebellion she sowed buttons over her eyes to show she was in fact a rag doll; flawed but still valuable, she killed her father and ran away 
WOAH
JESUS TAKE THE WHEEL.
She must have had some mental problems before, right?
RIGHT?
You can't go batshit just cause your family wants you to act like a pretty girl

Reason to kill: a last rebellion to her father
Edgy

Commentary: I've seen tons and tons and TONS of doll OCS, so that knocks points down. Also, I feel like people should make OCS WITHOUT bad back stories, killing just for the sake of mental problems.
Mary sue level: 40% mary sue.
I've seen worse.