Nero Syrinx

A lot of the books I'm being recommended are not what I'm looking for, they are interesting, but not what I want. I want the main character to be a female villain and for her to win; the only thing I have been getting are heroes and/or sunshine. I don't want to sound rude but I probably am, anyways, I Hate heroes, always have, always will. I like stories like The Young Elites and The Count Of Monty Christo because the main characters were in no way heroes, they were selfish and in it for power and revenge. The Magician's Guild was about a hero(oine) who saves everyone in the end, which, while the book was okay, is something I hate. I like dark stuff but I'm not looking for grim dark books, which I don't think anyone has recommended yet. EDIT: Please no romance, though. Everything is romance based these days. It's fine if it end in travesty and triggers the turn to evil or if it has no large influence on the story. I've lost count of how many books I have read where the protagonist is bent on revenge but then they meet someone from the people that they have sworn to destroy, fall in love, and are then convinced not to get revenge because: "Killing is bad", "You are better then they are", or " If you do this, than you will be no better than them" blah blah blah; I don't want redeeming characters, I want hate filled, angry characters hell bent on making whoever wronged them suffer. Sorry for the rant.

I just finished the Magicians Guild series, I enjoyed it, but it's not what I'm looking for. The main character is not a villain or antihero and overall it was too light, I did like it but it's not what I'm looking for.

Thank you everyone for your recommendations. I'm going to try them out very soon. To specify another point: I really like the darker books, where there is no happy end for the good guys. That's probably the biggest thing that drew me into the Young Elites. I also enjoyed The Count of Monte Cristo because of the darker undertones of it.

Looking for good books with a female protagonist that is either a villain or anti hero. Preferably Middle Ages-esque. The Young Elites series is a good example.