Alittle weird but im j/w

i dont usally beleive in stuff like this but my friend convices me that shes a "vampire" idk if shes serious or shes just messing with me btu she sas it alot now and im j/w is it like humanly or in anywya possible she can actually be this and no im not some stupid kid or anythign im actually 17 but im vey curious i normally dont beleive in alot of thigns but she really convines me ts what she is and i mean i dont want to be mean to her and tell her shes a psycho and she needs elp so any answer will doo