I Need All Who Reads This To Help Me Out In Someway! Really Quick

[C's 94 InTeGrA]

ok i just messed up my integra really bad in the backend.. i was backing out of a place and thye have light poles in the parking lot and then at 11 they turn them out well i was backin out and didnt se it and hit it! ot tore my wonle bumper complety on its still on the car, tail light and whole right side is mashed in and there is a big dent on that side from the compression from the hit. i duno wat to do guys i am a nervous wreak right now. i duno wat to do.. should i try to find a body kit to get to reaplce the bumpoer and everything to make it cheap and all? just need some suggestions please thanx u1