I'm Trying to Get a Book Published! discussion

I am very new to writing. Everything I have tried to write usually ended in me not knowing where to go next and giving up. I am looking to write a book on Elves and their soon to be queen. It will be an adult PNR. Please read the little I have and tell me what you think. I know it needs a little polishing, and this is defiantly a rough draft. Thanks.

Blood dripped from their matted hair. Screams tormented the night. The scent of gore and sex clung to the air I breathed. Oh my God. I thought as I looked upon the…humans? I am not sure what they are. Their naked bodies flashed digits of human women, but the skin was so mangled, torn in so many places I could not be sure. How do they survive? What kind of creature kept them here? I only had to slide my eyes to the right to answer the latter.
I was escorted into the camp further. I thought my imagination had seen the worst. I was wrong.

The sun shone through the dark curtains in the room we were inhabiting for the night. By instinct, I knew it was too early for my little sister, Karli, to wake. I rolled over and looked at her innocent, sleeping face. My heart swelled with the need to protect her. She is all I have left.
It had been years since our parents were killed. My mother followed the path of my grandmother. Stolen in her youth, Suzana went missing at age 22 after giving birth to my sister. I was 14 at the time. Not nearly old enough to care for a newborn. My father hung himself out of grief three months later. Now we lived wherever fit, waiting for someone to take us in from the freezing temperatures or sleeping in the musky sewers where it was warm.
I knew she would soon be old enough to leave me should she wish. There was no reason for her to stay when I could barley find enough food for one person. Never two. Normal women coming upon their 23 year of life would have a family, a husband and three children. Shame from my grandmother’s insanity was placed on my family long before I was born. Suzana was lucky my father would have her. After her kidnapping and my father’s suicide no man would look at Karli or me. No one would wed us.
My only hope is to send her on the ship coming the next night. I hope I have taught her how to protect herself. I hope she can find peace in the new world. As for me? I will keep on as I have been. Hunting, searching, begging, and selling myself. Men love a woman with no ties. No restrictions, no punishment, no one to find her should they be too rough. I do not enjoy being a whore, but if it is the only way to save me and Karli, who am I to choose?
I pushed to past away. It would do me no good to think on it this day. Today all that mattered was preparing Karli for her new life. A life without me.
“Karli.” I shook the little lump under the covers gently. “Karli, we must get you ready.”
“Mmm, sis may I please sleep just a tad longer?”
“No sweetheart. You begin your new journey today, remember?”
“But what if I do not want to? You know I wish not to leave you. Why will you not come with me? Please come with me.” Her pleading eyes sawed at my heart. How could I tell the youth that I only had enough money to save her? That I had been prostituting myself for years to see her onto that ship? I couldn’t, so I said all I could say, “I will join you one day. For now I must stay here. Take care of Grams until she no longer needs me.” Grams did not know who I was. Neither did her nurses. They all thought I was a niece with nothing better to do. “The poor child.” They called me. I hate pity.