Trouble with men who love me ?

Ok i have a fiance and i love him very much we will get married when i turn 18 but i have 9 other guys that love me but i dont know what to do i love my fiance but i just dont know how to get these guys away they just dont get the hint that i dont like them like that. so tell what should i do im in desprate need of advice cuz i dont want to be mean to them but i also dont want to lose the man of my life.?