This Time Tomorrow by Tessa Bailey

Roksana, heiress to the vampire slayer throne, has performance anxiety. She’s supposed to kill Elias, but so far she’s only succeeded in maxing out his credit card. Now her failure to stake the brooding vampire has sent her back to Moscow in disgrace to face her mother’s wrath. Expecting punishment by death, she’s given a rare reprieve. She now has three tasks to complete, the last of which is to finally kill Elias. She will not fail this time….. Read more.