I will give critique to both writing and picture.
Starting with the writing. Overall it seems excessively too Mary Sue, there is way too much stress on people being cruel and too many plot holes. Not to mention after "she turns 18" you switch from descriptive to narrative. You can have a tragic/disturbing backstory for a character without forcefully making said character's every moment of life a twisted torrent of hate and violence.
Perhaps after her mother fails to abort her(which is sort of a plothole- how do you fail to abort a fetus?), she ends up raising her without hate. But her father's blood awakens and she shys away from comfort, running away, mixing with drugs and whatnot, THEN getting human trafficked and eventually murdering her pimp and co-workers or some shit. I don't know.
As for drawing- Way too many thick awkward lines; especially the waist. Shoulder line is excessively bigger than the waist which is a no-no. Nipples are a bit crooked and the breasts and shoulderline proportions are inverted( For example, if you kept the current shoulder proportion with the left shoulder slightly relaxed- then the left breast would be slightly more sagged than the right.) Not to mention I just don't feel the shape of the shoulderline in general.
Keep at it.