How to fix screen if there is no glass at the top?

my screen is cracked up along the sides and i know how to fix that but it fell off at the top, the glass space right above the actual screen where the speaker and camera are. i can see the actual camera and a cable was poking out before but now it has broken off. i don't understand how i would fix the screen because since that part is broken i couldn't hold it up perpendicular since there is no screen at the top, it also has lines all over it and they get worse the longer the phone is unlocked, please help!