My kitty broke her leg!!!?

about an hour ago my cat was playing and jumped on a shelf the whole thing with everything on it came crashing down on top of her. her back leg def looks broken she will not walk on it and you can see where it is very very swollen all the emergency vets open in my area want $300 to $500 to be seen by doc an xray and medication. I lost my job and have moved back home i am BROKE and my parents dont have it i cant start calling to see where i can get her some help until the morning I feel so awful. my poor little baby is in pain i feel like im failing her so bad right now... is there anything i can do to help her with the pain until the morning ive been laying next to her and rubbing her head she purs but she flinches you can tell she in pain she has had some water and snacks but i dont know what else to do for her this is breaking my heart...anything would be greatly appreciated