a vampire story...

ok i am menulis a vampire story and i wrote the prologue and chapter one, but now i am questioning my plot, witch was that this girl named stacy, is mugged and stabbed. she then gets saved oleh a vampire named james and he trys to change her into a vamp and he ends up tring her into a half vampire. because of her ancestors blood. and she continues her life in high school and continues to fight the earg to feed on humans ...

oh and im on chaper 3 after she just see's james and i am extremely stuck and dont know what to do