how do i find someone without a last name?

[Andrew]

OK BEFORE I CONTINUE WITH THIS THE USER "GOD OF ATHIESM" WE HAVE MET, IN PERSON, STOP BEING A LIMPDICK. READ THE DAMN QUESTION CLOSER. anyway to the rest of yall here it goes : alright so first let me get something straight, im not a stalker, and i will not tolerate sarcastic answers. so i am a 16 year old male that lives in sussex wisconsin. i met this girl online from appleton wisconsin, we stated talking and eventually became bf/gf. well suddenly she deleted her account on the site we were on, i lost all contact info. she means the world to me but couldnt give me her number and or freind me on facebook. now i have been searching relentlessly every day ( no joke) for about a year and could not find her, ive tried facebook, othr dating sites, freinds, and doing things im not proud of to get nowhere at all. i have extremely limited information to, all i have is her first name, hight, age, general looks, intrestst, places she likes and where she lives ( nikki, 5'5'' about, 14 blonde hair, nice body, hazel /blue eyes, country music, appleton wisconsin) i never got her last name. so my question is " how can i find her"? she IS real, we have met, and according to the site she "deleted" her profile. ive googled and everything, once again she means the world to me and im not a stalker, ive had terrible answers in the past and im sicxk of it like " mclovin, u r a stalker' and all, plz help thats all i can say