A New world (edited)

Clara is a half-blood. In other words not a pure werewolf. She is able turn wolf but she does not have werewolf abilities.She now studies in a school for pure-blooded wolves where they hate half-bloods so much they kill them on sight. Clara is also part witch, so she can refine her scent to that of a pure-blood, but how long can she keep her secret? The top alpha wants her for his son, Bryan. Bryan's brother slash rival knows her secret and he wants her. He hooks Clara up with a witch trainer to gain her full power while Bryan seems to be getting closer to her secret. When vampires attack the community will Clara be able to protect the ones she loves and still keep her secret safe?