My hair got ripped out by a iceshaver, what should i do?

yesterday i was showing my fiance the industrial ice shaver we have and i leaned over to dump the ice and i got caught and pulled in and i was stuck it was still trying to spin and started ripping out my hair. my fiance and brother rushed over and unplugged it and we untangled me but a large amount of my hair got torn out, about 5 in across 4 vertically in the top back part of my head....bald. my hair is about 16inches long idk now its not so pretty, idk how long hair takes to start growing in after being pulled out i cant really get hair extensions there is no hair there to attach to, and since it is the top of my hair it would be visible ...hmm idk what to do, im still pretty shocked it happened :-/